BNA / - SEC-arkiveringar, Årsredovisning, Fullmaktsutlåtande

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SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to
SEC Filings (Chronological Order)
Denna sida innehåller en komplett, kronologisk lista över SEC-arkiveringar, exklusive ägande-arkiveringar som vi tillhandahåller på andra ställen.
April 24, 2015 EX-99.77C VOTES

For

77C: Submission of matters to a vote of security holders At a special meeting of all shareholders of BlackRock Income Opportunity Trust, Inc.

November 21, 2014 N-8F

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-8F APPLICATION FOR DEREGISTRATION OF CERTAIN REGISTERED INVESTMENT COMPANIES

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-8F APPLICATION FOR DEREGISTRATION OF CERTAIN REGISTERED INVESTMENT COMPANIES I. General Identifying Information 1. Reason fund is applying to deregister (check only one; for descriptions, see Instruction 1 above): x Merger o Liquidation o Abandonment of Registration o Election of status as a Business Development Company 2. Name of fu

November 10, 2014 EX-99.25

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on November 21, 2014, pursuant to the provisions of Rule 12d2-2 (a).

October 30, 2014 EX-99.77B ACCT LTTR

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

EX-99.77B ACCT LTTR 2 tax477b.htm REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Shareholders and Board of Trustees/Directors of BlackRock Core Bond Trust, BlackRock Corporate High Yield Fund, Inc., BlackRock Income Opportunity Trust, Inc., and BlackRock Income Trust, Inc.: In planning and performing our audits of the financial statements of BlackRock Core Bond Trust, BlackRock Cor

September 18, 2014 425

BHK / BlackRock Core Bond Trust 425 - Merger Prospectus - FORM 425

Filed by BlackRock Core Bond Trust pursuant to Rule 425 of the Securities Act of 1933, as amended and deemed filed pursuant to Rules 13e-4 and 14a-12 under the Securities and Exchange Act of 1934, as amended Subject Company: BlackRock Income Opportunity Trust, Inc.

September 18, 2014 425

BNA / 425 - Merger Prospectus - FORM 425

Filed by BlackRock Income Opportunity Trust, Inc. pursuant to Rule 425 of the Securities Act of 1933, as amended and deemed filed pursuant to Rules 13e-4 and 14a-12 under the Securities and Exchange Act of 1934, as amended Subject Company: BlackRock Income Opportunity Trust, Inc. Commission File No. 811-06443 WE NEED YOUR HELP - PLEASE VOTE NOW! IMPORTANT NOTICE FOR SHAREHOLDERS OF: BLACKROCK INCO

September 10, 2014 425

BHK / BlackRock Core Bond Trust 425 - Merger Prospectus - FORM 425

425 1 form425.htm FORM 425 Filed by BlackRock Core Bond Trust pursuant to Rule 425 of the Securities Act of 1933, as amended and deemed filed pursuant to Rules 13e-4 and 14a-12 under the Securities and Exchange Act of 1934, as amended Subject Company: BlackRock Income Opportunity Trust, Inc. Commission File No. 811-06443 PLEASE VOTE NOW! IMPORTANT NOTICE FOR SHAREHOLDERS OF: BLACKROCK INCOME TRUST

September 10, 2014 425

BNA / 425 - Merger Prospectus - FORM 425

Filed by BlackRock Income Opportunity Trust, Inc. pursuant to Rule 425 of the Securities Act of 1933, as amended and deemed filed pursuant to Rules 13e-4 and 14a-12 under the Securities and Exchange Act of 1934, as amended Subject Company: BlackRock Income Opportunity Trust, Inc. Commission File No. 811-06443 PLEASE VOTE NOW! IMPORTANT NOTICE FOR SHAREHOLDERS OF: BLACKROCK INCOME TRUST, INC. (“BKT

August 29, 2014 425

BHK / BlackRock Core Bond Trust 425 - Merger Prospectus - FORM 425

Filed by BlackRock Core Bond Trust pursuant to Rule 425 of the Securities Act of 1933, as amended and deemed filed pursuant to Rules 13e-4 and 14a-12 under the Securities and Exchange Act of 1934, as amended Subject Company: BlackRock Income Opportunity Trust, Inc.

August 29, 2014 425

BNA / 425 - Merger Prospectus - FORM 425

Filed by BlackRock Income Opportunity Trust, Inc. pursuant to Rule 425 of the Securities Act of 1933, as amended and deemed filed pursuant to Rules 13e-4 and 14a-12 under the Securities and Exchange Act of 1934, as amended Subject Company: BlackRock Income Opportunity Trust, Inc. Commission File No. 811-06443 PLEASE VOTE NOW! IMPORTANT NOTICE FOR SHAREHOLDERS OF: BLACKROCK INCOME TRUST, INC. (“BKT

July 23, 2014 N-Q

BNA / N-Q - Quarterly Schedule of Portfolio Holdings - QUARTERLY SCHEDULE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-06443 Name of Fund: BlackRock Income Opportunity Trust, Inc. (BNA) Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809 Name and address of agent for service: John M. Perlowski, Chief Executi

July 23, 2014 EX-99.CERT

EX-99. CERT

EX-99. CERT CERTIFICATION PURSUANT TO RULE 30a-2(a) UNDER THE 1940 ACT AND SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, John M. Perlowski, Chief Executive Officer (principal executive officer) of BlackRock Income Opportunity Trust, Inc., certify that: 1. I have reviewed this report on Form N-Q of BlackRock Income Opportunity Trust, Inc.; 2. Based on my knowledge, this report does not contain a

June 13, 2014 DEFA14A

- BLACKROCK BUILD AMERICA BOND TRUST

BlackRock Build America Bond Trust UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

June 13, 2014 DEF 14A

- BLACKROCK PROXY STATEMENT CLASSIFIED BOARD

BLACKROCK PROXY STATEMENT CLASSIFIED BOARD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

June 9, 2014 425

Merger Prospectus -

Filed by BlackRock Income Opportunity Trust, Inc. pursuant to Rule 425 of the Securities Act of 1933, as amended and deemed filed pursuant to Rules 13e-4 and 14a-12 under the Securities and Exchange Act of 1934, as amended Subject Company: BlackRock Income Opportunity Trust, Inc. Commission File No. 811-06443 Contact: 1-800-882-0052 BlackRock Announces Board Approval of the Reorganization of Three

June 9, 2014 425

Merger Prospectus -

Filed by BlackRock Core Bond Trust pursuant to Rule 425 of the Securities Act of 1933, as amended and deemed filed pursuant to Rules 13e-4 and 14a-12 under the Securities and Exchange Act of 1934, as amended Subject Company: BlackRock Income Opportunity Trust, Inc.

April 25, 2014 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): BlackRock Limited Duration Income Trust (BLW) BlackRock Secured Credit Portfolio (BR-MSB) BlackRock Multi-Asset Income - Passive High Yield Portfolio (BR-INC-PHY) BlackRock High Yield Portfolio of BlackRock Series Fund, Inc (BVA-HI) BlackRock Corporate High Yield Fund VI, Inc. (HYT) BlackRock Debt Strategies Fund, Inc. (DS

January 27, 2014 N-Q

Quarterly Schedule of Portfolio Holdings - QUARTERLY SCHEDULE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-06443 Name of Fund: BlackRock Income Opportunity Trust, Inc. (BNA) Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809 Name and address of agent for service: John M. Perlowski, Chief Executi

January 27, 2014 EX-99.CERT

EX-99. CERT

EX-99. CERT CERTIFICATION PURSUANT TO RULE 30a-2(a) UNDER THE 1940 ACT AND SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, John M. Perlowski, Chief Executive Officer (principal executive officer) of BlackRock Income Opportunity Trust, Inc., certify that: 1. I have reviewed this report on Form N-Q of BlackRock Income Opportunity Trust, Inc.; 2. Based on my knowledge, this report does not contain a

October 29, 2013 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): BlackRock Core Bond Trust (BHK) BlackRock Multi-Sector Income Trust (BIT) BlackRock Income Opportunity Trust (BNA-USD) BlackRock Multi-Asset Income - Preferred Stock Portfolio (BR-INC-PS) The Offering Key Characteristics (Complete ALL Fields) Date of Offering Commencement: 08-05-2013 Security Type: BND/CORP Issuer The Alls

October 29, 2013 EX-99.77B ACCT LTTR

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

EX-99.77B ACCT LTTR 5 tax877b.htm REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Shareholders and Board of Trustees/Directors of BlackRock Core Bond Trust, BlackRock Corporate High Yield Fund V, Inc., BlackRock Corporate High Yield Fund VI, Inc., BlackRock High Income Shares, BlackRock High Yield Trust, BlackRock Income Opportunity Trust, Inc., BlackRock Income Trust, Inc. and Blac

October 29, 2013 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): BlackRock Multi-Asset Income - Passive High Yield Portfolio (BR-INC-PHY) BlackRock Multi-Asset Income - High Yield Portfolio (BR-INC-HY) BlackRock Multi-Sector Income Trust (BIT) BlackRock Debt Strategies Fund, Inc. (DSU) BlackRock Funds, BlackRock Global Long/Short Credit Fund (BR-GC) BlackRock High Yield Portfolio of Bla

October 29, 2013 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): BlackRock Funds, BlackRock Global Long/Short Credit Fund (BR-GC) BlackRock Credit Allocation Income Trust (Preferred Sleeve) (BTZ-PREF) BlackRock Strategic Bond Trust (BHD) BlackRock Secured Credit Portfolio (BR-MSB) BlackRock Multi-Sector Income Trust (BIT) BlackRock Limited Duration Income Trust (BLW) BlackRock Core Bond

July 25, 2013 EX-99.CERT

EX-99. CERT

EX-99. CERT CERTIFICATION PURSUANT TO RULE 30a-2(a) UNDER THE 1940 ACT AND SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, John M. Perlowski, Chief Executive Officer (principal executive officer) of BlackRock Income Opportunity Trust, Inc., certify that: 1. I have reviewed this report on Form N-Q of BlackRock Income Opportunity Trust, Inc.; 2. Based on my knowledge, this report does not contain a

July 25, 2013 N-Q

Quarterly Schedule of Portfolio Holdings - QUARTERLY SCHEDULE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-06443 Name of Fund: BlackRock Income Opportunity Trust, Inc. (BNA) Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809 Name and address of agent for service: John M. Perlowski, Chief Executi

June 13, 2013 DEF 14A

- BLACKROCK PROXY STATEMENT CLASSIFIED BOARD

BLACKROCK PROXY STATEMENT CLASSIFIED BOARD UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 26, 2013 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): AST BlackRock Global Strategies Portfolio - US High Yield (PRU-AA-HY) BlackRock Core Bond Trust (BHK) BlackRock Corporate High Yield Fund III, Inc. ( CYE) BlackRock Corporate High Yield Fund V, Inc. ( HYV) BlackRock Corporate High Yield Fund VI, Inc. ( HYT) BlackRock Corporate High Yield Fund, Inc.( COY) BlackRock Credit A

April 26, 2013 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): BlackRock Senior High Income Fund, Inc. (ARK) BlackRock Core Bond Trust (BHK) BlackRock Income Opportunity Trust (BNA-USD) BlackRock High Yield Portfolio of BlackRock Series Fund, Inc (BVA-HI) BlackRock High Yield Trust (BHY) BlackRock High Income Shares (HIS) BlackRock High Yield Portfolio (MIST-HY) BlackRock Secured Cred

April 26, 2013 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): BlackRock Income Opportunity Trust (BNA-USD) BlackRock Core Bond Trust (BHK) The Offering Key Characteristics (Complete ALL Fields) Date of Offering Commencement: 09-05-2012 Security Type: BND/CORP Issuer WellPoint, Inc. (2043) Selling Underwriter Deutsche Bank Securities Inc. Affiliated Underwriter(s) PNC Other: List of U

April 26, 2013 EX-99.77O RULE 10F-3

Participating Funds

EX-99.77O RULE 10F-3 4 boa77o.htm Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): BlackRock Total Return Portfolio (Ins - Series) (BVA-TR) Transamerica Multi-Managed Balanced Portfolio (TA-CORE) BlackRock Balanced Capital VI Fund (FI) (BVIF) BlackRock Core Bond Trust (BHK) Metropolitan Series BlackRock Diversified Portfolio (Core PLUS Bond) (METDB) BlackRock Strategic I

April 26, 2013 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): BlackRock Core Bond Trust (BHK) BlackRock Income Opportunity Trust (BNA-USD) BlackRock Credit Allocation Income Trust IV (Preferred Sleeve) (BTZ-PREF) BlackRock Strategic Bond Trust (BHD) BlackRock Credit Allocation Income Trust I, Inc. (PSW) BlackRock Credit Allocation Income Trust III (BPP) BlackRock Credit Allocation In

April 26, 2013 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): BlackRock Strategic Bond Trust (BHD) BlackRock Credit Allocation Income Trust I, Inc. (PSW) BlackRock Credit Allocation Income Trust III (BPP) AST BlackRock Global Strategies Portfolio - US High Yield (PRU-AA-HY) BlackRock Core Bond Trust (BHK) BlackRock Income Opportunity Trust (BNA-USD) BlackRock Credit Allocation Income

April 26, 2013 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): AST BlackRock Global Strategies Portfolio - US High Yield (PRU-AA-HY) iShares iBoxx $ High Yield Corporate Bond Fund (ISHHYLD) BlackRock Strategic Bond Trust (BHD) BlackRock Income Opportunity Trust (BNA-USD) BlackRock Credit Allocation Income Trust II, Inc. (PSY) BlackRock Credit Allocation Income Trust IV (Preferred Slee

April 26, 2013 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): AST BlackRock Global Strategies Portfolio - US High Yield(PRU-AA-HY) BlackRock Core Bond Trust(BHK) BlackRock Corporate High Yield Fund III, Inc.( CYE) BlackRock Corporate High Yield Fund V, Inc.( HYV) BlackRock Corporate High Yield Fund VI, Inc.( HYT) BlackRock Corporate High Yield Fund, Inc.( COY) BlackRock Credit Alloca

April 26, 2013 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): AST BlackRock Global Strategies Portfolio - US High Yield (PRU-AA-HY) BlackRock Secured Credit Portfolio (BR-MSB) BlackRock High Yield Portfolio of BlackRock Series Fund, Inc (BVA-HI) BlackRock Senior High Income Fund, Inc. (ARK) BlackRock High Yield Portfolio (MIST-HY) BlackRock Corporate High Yield Fund III, Inc. (CYE) B

January 29, 2013 CORRESP

-

CORRESP 1 filename1.htm 787 Seventh Avenue New York, NY 10019-6099 Tel: 212 728 8000 Fax: 212 728 8111 January 29, 2013 Via EDGAR Laura Hatch Division of Investment Management Securities and Exchange Commission 100 F Street, NE Washington, D.C. 20549 Re: Comments to Shareholder Reports of the registrants identified on Exhibit A (the “Registrants”) Dear Ms. Hatch: This letter responds to certain co

January 24, 2013 N-Q

Quarterly Schedule of Portfolio Holdings - QUARTERLY SCHEDULE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-06443 Name of Fund: BlackRock Income Opportunity Trust, Inc. (BNA) Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809 Name and address of agent for service: John M. Perlowski, Chief Executi

January 24, 2013 EX-99.CERT

EX-99. CERT

EX-99. CERT CERTIFICATION PURSUANT TO RULE 30a-2(a) UNDER THE 1940 ACT AND SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, John M. Perlowski, Chief Executive Officer (principal executive officer) of BlackRock Income Opportunity Trust, Inc., certify that: 1. I have reviewed this report on Form N-Q of BlackRock Income Opportunity Trust, Inc.; 2. Based on my knowledge, this report does not contain a

December 7, 2012 CORRESP

-

787 Seventh Avenue New York, NY 10019-6099 Tel: 212 728 8000 Fax: 212 728 8111 December 7, 2012 Via EDGAR Laura Hatch Division of Investment Management Securities and Exchange Commission 100 F Street, NE Washington, D.

October 29, 2012 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): BlackRock Balanced Capital Portfolio (FI) (Ins - Series) (BCSF) BlackRock Core Bond Trust (BHK) BlackRock Income Opportunity Trust (BNA-USD) BlackRock Asset Allocation Portfolio (Fixed Income) (BRAAFI) BlackRock Core Bond Portfolio (BR-CORE) BlackRock Global Long/Short Credit Fund (BR-GC) BlackRock Multi Sector Bond Fund (

October 29, 2012 EX-99.77B ACCT LTTR

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Shareholders and Board of Directors of BlackRock Income Opportunity Trust, Inc.

October 29, 2012 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): AXA Multimanager Core Bond Portfolio (AXA-VIP) AZL Enhanced Bond Index Fund (AZ-CORE) BlackRock Asset Allocation Portfolio (Fixed Income) (BRAAFI) BlackRock Balanced Capital Portfolio (FI) (Ins - Series) (BCSF) BlackRock Balanced Capital VI Fund (FI) (BVIF) BlackRock Core Bond Portfolio (BR-CORE) BlackRock Core Bond Trust

October 29, 2012 EX-99.77O RULE 10F-3

Abhishek Anchal

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): AST BlackRock Global Strategies Portfolio - US High Yield (PRU-AA-HY) BlackRock Asset Allocation Portfolio (Fixed Income) (BRAAFI) BlackRock Balanced Capital Portfolio (FI) (Ins - Series) (BCSF) BlackRock Balanced Capital VI Fund (FI) (BVIF) BlackRock Core Bond Trust (BHK) BlackRock Corporate High Yield Fund III, Inc. (CYE

October 29, 2012 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds AST BlackRock Global Strategies Portfolio - US High Yield (PRU-AA-HY) BlackRock Core Bond Trust (BHK) BlackRock Credit Allocation Income Trust I, Inc.

October 29, 2012 EX-99.77O RULE 10F-3

Abhishek Anchal

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): AXA Multimanager Core Bond Portfolio (AXA-VIP) AZL Enhanced Bond Index Fund (AZ-CORE) BlackRock Asset Allocation Portfolio (Fixed Income) (BRAAFI) BlackRock Balanced Capital Portfolio (FI) (Ins - Series) (BCSF) BlackRock Balanced Capital VI Fund (FI) (BVIF) BlackRock Bond Allocation Target Shares: Series C Portfolio (BATSC

October 29, 2012 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): EQ/Franklin Core Balanced Portfolio (Barclays Agg Sleeve) (AXA-FI) EQ/Global Bond PLUS Portfolio (AXA-GB) Bond Index Master Portfolio (MIPAGG) Nationwide Bond Index Fund (NW-BI) NVIT Bond Index Fund (NW-GBI) BlackRock Core Bond Trust (BHK) BlackRock Income Opportunity Trust (BNA-USD) BlackRock Funds, BlackRock Global Long/

October 29, 2012 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): AST BlackRock Global Strategies Portfolio - Core Active (PRU-AA-CAB) BlackRock Core Bond Trust (BHK) BlackRock Income Opportunity Trust (BNA-USD) CoreAlpha Bond Master Portfolio (MIPCORA) The Offering Key Characteristics (Complete ALL Fields) Date of Offering Commencement: 03-07-2012 Security Type: BND/CORP Issuer Phillips

October 29, 2012 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): BlackRock Core Bond Trust (BHK) BlackRock Income Opportunity Trust (BNA-USD) iShares Barclays Aggregate Bond Fund (ISHAGG) iShares Barclays Credit Bond Fund (ISHCRED) iShares Barclays Intermediate Government/Credit Bond Fund (ISHIGOVCR) The Offering Key Characteristics (Complete ALL Fields) Date of Offering Commencement: 0

October 10, 2012 SC 13G/A

BNA / / WELLS FARGO & COMPANY/MN Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2) BLACKROCK INCOME OPP TRUST I (Name of Issuer) COM (Title of Class of Securities) 092475102 (CUSIP Number) September 30, 2012 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sch

July 26, 2012 N-Q

Quarterly Schedule of Portfolio Holdings -

N-Q 1 i00314bna-nq.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-06443 Name of Fund: BlackRock Income Opportunity Trust, Inc. (BNA) Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809 Name and address of agent for service: John M. P

July 26, 2012 EX-99.CERT

EX-99. CERT

EX-99. CERT CERTIFICATION PURSUANT TO RULE 30a-2(a) UNDER THE 1940 ACT AND SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, John M. Perlowski, Chief Executive Officer (principal executive officer) of BlackRock Income Opportunity Trust, Inc., certify that: 1. I have reviewed this report on Form N-Q of BlackRock Income Opportunity Trust, Inc.; 2. Based on my knowledge, this report does not contain a

June 12, 2012 DEFR14A

- CLASSIFIED FUND NOTICE AND PROXY

CLASSIFIED FUND NOTICE AND PROXY Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

June 11, 2012 DEF 14A

- CLASSIFIED FUND NOTICE AND PROXY

Classified Fund Notice and Proxy Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 27, 2012 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds AST BlackRock Global Strategies Portfolio - US High Yield (PRU-AA-HY) BlackRock Core Bond Trust (BHK) BlackRock Credit Allocation Income Trust I, Inc.

April 27, 2012 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): AXA Multimanager Core Bond Portfolio (AXA-VIP) AZL Enhanced Bond Index Fund (AZ-CORE) BlackRock Asset Allocation Portfolio (Fixed Income) (BRAAFI) BlackRock Balanced Capital Portfolio (FI) (Ins - Series) (BCSF) BlackRock Balanced Capital VI Fund (FI) (BVIF) BlackRock Core Bond Portfolio (BR-CORE) BlackRock Core Bond Trust

April 27, 2012 EX-99.77O RULE 10F-3

Participating Funds

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): BlackRock Balanced Capital Portfolio (FI) (Ins - Series) (BCSF) BlackRock Core Bond Trust (BHK) BlackRock Income Opportunity Trust (BNA-USD) BlackRock Asset Allocation Portfolio (Fixed Income) (BRAAFI) BlackRock Core Bond Portfolio (BR-CORE) BlackRock Global Long/Short Credit Fund (BR-GC) BlackRock Multi Sector Bond Fund (

April 27, 2012 EX-99.77O RULE 10F-3

Abhishek Anchal

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): AST BlackRock Global Strategies Portfolio - US High Yield (PRU-AA-HY) BlackRock Asset Allocation Portfolio (Fixed Income) (BRAAFI) BlackRock Balanced Capital Portfolio (FI) (Ins - Series) (BCSF) BlackRock Balanced Capital VI Fund (FI) (BVIF) BlackRock Core Bond Trust (BHK) BlackRock Corporate High Yield Fund III, Inc. (CYE

April 27, 2012 EX-99.77O RULE 10F-3

Abhishek Anchal

Participating Funds n U.S. Registered Funds (Name of Fund, Aladdin Ticker): AXA Multimanager Core Bond Portfolio (AXA-VIP) AZL Enhanced Bond Index Fund (AZ-CORE) BlackRock Asset Allocation Portfolio (Fixed Income) (BRAAFI) BlackRock Balanced Capital Portfolio (FI) (Ins - Series) (BCSF) BlackRock Balanced Capital VI Fund (FI) (BVIF) BlackRock Bond Allocation Target Shares: Series C Portfolio (BATSC

January 26, 2012 EX-99.CERT

EX-99. CERT

EX-99. CERT CERTIFICATION PURSUANT TO RULE 30a-2(a) UNDER THE 1940 ACT AND SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, John M. Perlowski, Chief Executive Officer (principal executive officer) of BlackRock Income Opportunity Trust, Inc., certify that: 1. I have reviewed this report on Form N-Q of BlackRock Income Opportunity Trust, Inc.; 2. Based on my knowledge, this report does not contain a

January 26, 2012 N-Q

Quarterly Schedule of Portfolio Holdings -

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-06443 Name of Fund: BlackRock Income Opportunity Trust, Inc. (BNA) Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809 Name and address of agent for service: John M. Perlowski, Chief Executi

January 24, 2012 SC 13G/A

BNA / / WELLS FARGO & COMPANY/MN Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1) BLACKROCK INCOME OPP TRUST I (Name of Issuer) COM (Title of Class of Securities) 092475102 (CUSIP Number) December 31, 2011 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sche

October 31, 2011 EX-99.77O RULE 10F-3

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures 1.

October 31, 2011 EX-99.77Q1 OTHR EXHB

BLACKROCK INCOME OPPORTUNITY TRUST, INC. Articles Supplementary

BlackRock Income Opportunity Trust, Inc. (the “Registrant”) 77Q1(a): Copies of material amendments to Registrant’s charter or by-laws Attached please find as an exhibit under Sub-Item 77Q1(a) of Form N-SAR a copy of the Registrant's Articles Supplementary filed with the with the State Department of Assessments and Taxation of Maryland on September 17, 2010. Exhibit 77Q1(a) BLACKROCK INCOME OPPORTU

October 31, 2011 EX-99.77Q1 OTHR EXHB

BLACKROCK INCOME OPPORTUNITY TRUST, INC. Articles Supplementary

BlackRock Income Opportunity Trust, Inc. (the “Registrant”) 77Q1(a): Copies of material amendments to Registrant’s charter or by-laws Attached please find as an exhibit under Sub-Item 77Q1(a) of Form N-SAR a copy of the Registrant's Articles Supplementary filed with the with the State Department of Assessments and Taxation of Maryland on September 17, 2010. Exhibit 77Q1(a) BLACKROCK INCOME OPPORTU

October 31, 2011 EX-99.77O RULE 10F-3

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures 1.

October 31, 2011 EX-99.77B ACCT LTTR

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Shareholders and Board of Directors of BlackRock Income Opportunity Trust, Inc.

October 31, 2011 EX-99.77O RULE 10F-3

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures 1.

October 31, 2011 EX-99.77O RULE 10F-3

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures 1.

October 31, 2011 EX-99.77O RULE 10F-3

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures 1.

October 31, 2011 EX-99.77B ACCT LTTR

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Shareholders and Board of Directors of BlackRock Income Opportunity Trust, Inc.

October 31, 2011 EX-99.77O RULE 10F-3

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures 1.

October 31, 2011 EX-99.77O RULE 10F-3

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures 1.

October 31, 2011 EX-99.77O RULE 10F-3

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures 1.

October 31, 2011 EX-99.77O RULE 10F-3

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures 1.

October 31, 2011 EX-99.77O RULE 10F-3

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures 1.

July 29, 2011 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-06443 Name of Fund: BlackRock Income Opportunity Trust, Inc. (BNA) Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809 Name and address of agent for service: John M. Perlowski, Chief Executi

July 29, 2011 EX-99.CERT

EX-99. CERT

EX-99. CERT CERTIFICATION PURSUANT TO RULE 30a-2(a) UNDER THE 1940 ACT AND SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, John M. Perlowski, Chief Executive Officer (principal executive officer) of BlackRock Income Opportunity Trust, Inc., certify that: 1. I have reviewed this report on Form N-Q of BlackRock Income Opportunity Trust, Inc.; 2. Based on my knowledge, this report does not contain a

June 16, 2011 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant |X| Filed by a Party other than the Registrant || Check the appropriate box: || Preliminary Proxy Statement || Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) || Defi

June 16, 2011 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant |X| Filed by a Party other than the Registrant || Check the appropriate box: || Preliminary Proxy Statement || Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |X| Def

April 29, 2011 EX-99.77O RULE 10F-3

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures

FORM 10f-3 FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures 1.

April 29, 2011 EX-99.77O RULE 10F-3

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures 1.

April 20, 2011 EX-24

POWER OF ATTORNEY

POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS that the undersigned hereby constitutes, designates and appoints Howard Surloff, Janey Ahn, Edward Baer, Douglas McCormack, Aaron Wasserman, Ben Archibald and Noah Gellner of BlackRock, Inc.

February 4, 2011 EX-99.1

BlackRock Closed-End Funds Announce Date of 2011 Annual Meeting of Shareholders

Exhibit 99.1 Contact: 1-800-882-0052 BlackRock Closed-End Funds Announce Date of 2011 Annual Meeting of Shareholders New York, February 4, 2011— The BlackRock Closed-End Funds listed below (each a "Fund" and collectively, the "Funds") announced today that each of their 2011 annual meetings of shareholders will be held on July 28, 2011. Additional information regarding deadlines for shareholder pro

February 4, 2011 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 4, 2011 BlackRock Income Opportunity Trust, Inc. (Exact Name of Registrant as Specified in Charter) MARYLAND 811-06443 13-3634989 (State or Other Jurisdiction of Incorporatio

January 26, 2011 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-06443 Name of Fund: BlackRock Income Opportunity Trust, Inc. (BNA) Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809 Name and address of agent for service: Anne F. Ackerley, Chief Executiv

January 26, 2011 EX-99.CERT

EX-99. CERT

EX-99. CERT CERTIFICATION PURSUANT TO RULE 30a-2(a) UNDER THE 1940 ACT AND SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Anne F. Ackerley, Chief Executive Officer (principal executive officer) of BlackRock Income Opportunity Trust, Inc., certify that: 1. I have reviewed this report on Form N-Q of BlackRock Income Opportunity Trust, Inc.; 2. Based on my knowledge, this report does not contain an

January 25, 2011 SC 13G

SCHEDULE 13G SIGNATURE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. ) BLACKROCK INCOME OPP TRUST I (Name of Issuer) COM (Title of Class of Securities) 092475102 (CUSIP Number) December 31, 2010 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this Sched

November 1, 2010 EX-99.77B ACCT LTTR

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Shareholders and Board of Directors of BlackRock Income Opportunity Trust, Inc.

November 1, 2010 EX-99.77Q1 OTHR EXHB

BlackRock Income Opportunities Trust, Inc.

BlackRock Income Opportunities Trust, Inc. 77Q1(a): Copies of material amendments to Registrant’s by-laws Amended and Restated By-Laws of the Registrant is hereby incorporated by reference to the Registrant’s Form 8-K filed on September 21, 2010 (SEC Accession No. 0001193125-10-213612 (34 Act)).

November 1, 2010 EX-99.77O RULE 10F-3

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures 1.

November 1, 2010 EX-99.77O RULE 10F-3

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures 1.

November 1, 2010 EX-99.77O RULE 10F-3

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures 1.

September 21, 2010 EX-3.1

BLACKROCK INCOME OPPORTUNITY TRUST, INC. AMENDED AND RESTATED Effective as of September 17, 2010 TABLE OF CONTENTS Page ARTICLE I SHAREHOLDER MEETINGS Section 1. Chair 1 Section 2. Annual Meetings of Shareholders 1 Section 3. Special Meetings of Shar

BLACKROCK INCOME OPPORTUNITY TRUST, INC. AMENDED AND RESTATED BYLAWS Effective as of September 17, 2010 TABLE OF CONTENTS Page ARTICLE I SHAREHOLDER MEETINGS Section 1. Chair 1 Section 2. Annual Meetings of Shareholders 1 Section 3. Special Meetings of Shareholders 1 Section 4. Place of Meetings 2 Section 5. Notice of Meetings 2 Section 6. Nature of Business at Annual Meetings of Shareholders 3 Se

September 21, 2010 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 21, 2010 (September 17, 2010) BlackRock Income Opportunity Trust, Inc. (Exact name of registrant as specified in its charter) MARYLAND 811-21286 37-1461533 (State or other j

July 29, 2010 EX-99.1

EX-99. CERT

EX-99. CERT CERTIFICATION PURSUANT TO RULE 30a-2(a) UNDER THE 1940 ACT AND SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Anne F. Ackerley, Chief Executive Officer (principal executive officer) of BlackRock Income Opportunity Trust, Inc., certify that: 1. I have reviewed this report on Form N-Q of BlackRock Income Opportunity Trust, Inc.; 2. Based on my knowledge, this report does not contain an

July 29, 2010 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-06443 Name of Fund: BlackRock Income Opportunity Trust, Inc. (BNA) Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809 Name and address of agent for service: Anne F. Ackerley, Chief Executiv

July 23, 2010 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant |X| Filed by a Party other than the Registrant || Check the appropriate box: || Preliminary Proxy Statement || Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |X| Def

April 29, 2010 EX-99.77O RULE 10F-3

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures 1.

January 29, 2010 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-06443 Name of Fund: BlackRock Income Opportunity Trust, Inc. (BNA) Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809 Name and address of agent for service: Anne F. Ackerley, Chief Executiv

January 29, 2010 EX-99.CERT

EX-99. CERT

EX-99. CERT CERTIFICATION PURSUANT TO RULE 30a-2(a) UNDER THE 1940 ACT AND SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Anne F. Ackerley, Chief Executive Officer (principal executive officer) of BlackRock Income Opportunity Trust, Inc., certify that: 1. I have reviewed this report on Form N-Q of BlackRock Income Opportunity Trust, Inc.; 2. Based on my knowledge, this report does not contain an

October 30, 2009 EX-99.77O RULE 10F-3

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures 1.

October 30, 2009 EX-99.77B ACCT LTTR

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Shareholders and Board of Directors of BlackRock Income Opportunity Trust, Inc.

October 30, 2009 EX-99.77O RULE 10F-3

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures 1.

August 10, 2009 DEFR14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant |X| Filed by a Party other than the Registrant || Check the appropriate box: || Preliminary Proxy Statement || Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |X| Sup

July 24, 2009 EX-99.CERT

EX-99. CERT

EX-99. CERT CERTIFICATION PURSUANT TO RULE 30a-2(a) UNDER THE 1940 ACT AND SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Donald C. Burke, Chief Executive Officer (principal executive officer) of BlackRock Income Opportunity Trust, Inc., certify that: 1. I have reviewed this report on Form N-Q of BlackRock Income Opportunity Trust, Inc.; 2. Based on my knowledge, this report does not contain any

July 24, 2009 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-06443 Name of Fund: BlackRock Income Opportunity Trust, Inc. (BNA) Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809 Name and address of agent for service: Donald C. Burke, Chief Executive

July 17, 2009 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant |X| Filed by a Party other than the Registrant || Check the appropriate box: || Preliminary Proxy Statement || Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |X| Def

May 14, 2009 EX-24.3_286690

EX-24.3_286690

POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS that the undersigned hereby constitutes, designates and appoints Howard Surloff, Janey Ahn, Denis Molleur, Edward Baer, Douglas McCormack and Aaron Wasserman of BlackRock, Inc.

April 29, 2009 EX-99.77O RULE 10F-3

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures 1.

April 29, 2009 EX-99.77O RULE 10F-3

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures

FORM 10f-3 THE BLACKROCK FUNDS Record of Securities Purchased Under the Trust’s Rule 10f-3 Procedures 1.

January 28, 2009 EX-99.CERT

EX-99. CERT

c56186ex99-cert.htm - Converted by SEC Publisher, created by BCL Technologies Inc., for SEC Filing EX-99. CERT CERTIFICATION PURSUANT TO RULE 30a-2(a) UNDER THE 1940 ACT AND SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Donald C. Burke, Chief Executive Officer (principal executive officer) of BlackRock Income Opportunity Trust, Inc., certify that: 1. I have reviewed this report on Form N-Q of B

January 28, 2009 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-06443 Name of Fund: BlackRock Income Opportunity Trust, Inc. (BNA) Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809 Name and address of agent for service: Donald C. Burke, Chief Executive

October 31, 2008 EX-99.77O RULE 10F-3

BLACKROCK Income Opportunity Trust FILE #811-06443 ATTACHMENT 77O

10F-3 TRANSACTIONS BLACKROCK Income Opportunity Trust FILE #811-06443 ATTACHMENT 77O TRADE DATE DESCRIPTION OF SECURITY ISSUE SIZE AMOUNT PURCHASED LIST OF UNDERWRITERS 8/28/2007 AT&T Inc 2,000,000,000 4,075,000 Banc of America Securities LLC, Barclays Capital Inc.

October 31, 2008 EX-99.77B ACCT LTTR

EX-99.77B ACCT LTTR

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM To the Shareholders and Board of Directors of BlackRock Income Opportunity Trust, Inc.

October 30, 2008 EX-99.77O RULE 10F-3

BLACKROCK Income Opportunity Trust FILE #811-06443 ATTACHMENT 77O

BLACKROCK Income Opportunity Trust FILE #811-06443 ATTACHMENT 77O TRADE DATE DESCRIPTION OF SECURITY ISSUE SIZE AMOUNT PURCHASED LIST OF UNDERWRITERS 8/28/2007 AT&T Inc 2,000,000,000 4,075,000 Banc of America Securities LLC, Barclays Capital Inc.

October 30, 2008 EX-99.77B ACCT LTTR

EX-99.77B ACCT LTTR

October 7, 2008 8-K

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 7, 2008 (May 30, 2008) BlackRock Income Opportunity Trust, Inc. (Exact name of registrant as specified in its charter) MARYLAND 811-06443 13-3634989 (State or other jurisdicti

October 7, 2008 EX-3.1

BLACKROCK INCOME OPPORTUNITY TRUST, INC. AMENDED AND RESTATED Effective as of May 29, 2008 TABLE OF CONTENTS

Exhibit 3.1 BLACKROCK INCOME OPPORTUNITY TRUST, INC. AMENDED AND RESTATED BYLAWS Effective as of May 29, 2008 TABLE OF CONTENTS Page ARTICLE I SHAREHOLDER MEETINGS Section 1. Chairman 2 Section 2. Annual Meetings of Shareholders 2 Section 3. Special Meetings of Shareholders 2 Section 4. Place of Meetings 2 Section 5. Notice of Meetings 2 Section 6. Conduct of Meetings 4 Section 7. Adjournments 4 S

September 24, 2008 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-06443 Name of Fund: BlackRock Income Opportunity Trust, Inc. (BNA) Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809 Name and address of agent for service: Donald C. Burke, Chief Executive

September 24, 2008 EX-99.CERT

EX 99.CERT

c54722ex99.htm - Converted by SEC Publisher, created by BCL Technologies Inc., for SEC Filing EX 99.CERT CERTIFICATION PURSUANT TO RULE 30a-2(a) UNDER THE 1940 ACT AND SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Donald C. Burke, Chief Executive Officer (principal executive officer) of BlackRock Income Opportunity Trust, Inc., certify that: 1. I have reviewed this report on Form N-Q of BlackRo

July 31, 2008 DEF 14A

IMPORTANT NEWS FOR FUND SHAREHOLDERS

DEF 14A 1 e32412def14a.htm DEF 14A August 1, 2008 Dear Shareholder: A joint annual meeting of the BlackRock closed-end funds listed in Appendix A to the enclosed proxy statement (each a “Fund”) will be held at the offices of BlackRock Advisors, LLC, Park Avenue Plaza, 55 East 52nd Street, 11th Floor, New York, New York 10055, on Friday, September 12, 2008, at 12:30 p.m. (Eastern time), to vote on

June 30, 2008 EX-99.77O RULE 10F-3

BlackRock Income Opportunity Trust, Inc. FILE #811-06443 ATTACHMENT 77O

BlackRock Income Opportunity Trust, Inc. FILE #811-06443 ATTACHMENT 77O TRADE DATE DESCRIPTION OF SECURITY ISSUE SIZE AMOUNT PURCHASED LIST OF UNDERWRITERS 11/14/2007 Windstream Regatta Holdings 210,500,000 1,300,000 JPMorgan, Lehman Brothers, Merrill Lynch & Co., Goldman, Sachs & Co., Barclays Capital, BNP Paribas 12/6/2007 FNMA 280,000,000 123,150 Lehman Brothers Inc., Merrill Lynch, Pierce, Fen

June 2, 2008 EX-24

POWER OF ATTORNEY

POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS that the undersigned hereby constitutes, designates and appoints Howard Surloff, Janey Ahn, Denis Molleur, Edward Baer, Brian Kindelan, Robert Putney, Douglas McCormack and Adam Wasserman of BlackRock, Inc.

March 31, 2008 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-06443 Name of Fund: BlackRock Income Opportunity Trust, Inc. (BNA) Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809 Name and address of agent for service: Donald C. Burke, Chief Executive

March 31, 2008 EX-99.CERT

EX-99. CERT

c52579ex99-cert.htm - Converted by SEC Publisher, created by BCL Technologies Inc., for SEC Filing EX-99. CERT CERTIFICATION PURSUANT TO RULE 30a-2(a) UNDER THE 1940 ACT AND SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Donald C. Burke, Chief Executive Officer (principal executive officer) of BlackRock Income Opportunity Trust, Inc., certify that: 1. I have reviewed this report on Form N-Q of B

September 24, 2007 EX-99.CERT

EX-99. CERT

EX-99. CERT CERTIFICATION PURSUANT TO RULE 30a-2(a) UNDER THE 1940 ACT AND SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002 I, Robert S. Kapito, President (principal executive officer) of BlackRock Income Opportunity Trust, Inc., certify that: 1. I have reviewed this report on Form N-Q of BlackRock Income Opportunity Trust, Inc.; 2. Based on my knowledge, this report does not contain any untrue state

September 24, 2007 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number 811-06443 Name of Fund: BlackRock Income Opportunity Trust, Inc. Fund Address: 100 Bellevue Parkway, Wilmington, DE 19809 Name and address of agent for service: Robert S. Kapito, President, BlackRock

July 17, 2007 DEFA14A

SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement.

July 5, 2007 DEFA14A

SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement.

July 2, 2007 DEF 14A

SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

DEF 14A 1 ddef14a.htm BLACKROCK Table of Contents SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement. ¨ Confidential, for use of the Commission Only (as permitted by Rule 14a-6(e)(2)). x Definitive Proxy Statement. ¨ Definitive A

July 2, 2007 DEFA14A

SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: ¨ Preliminary Proxy Statement.

June 15, 2007 PRE 14A

SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

PRE 14A 1 dpre14a.htm BLACKROCK SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant ¨ Check the appropriate box: x Preliminary Proxy Statement. ¨ Confidential, for use of the Commission Only (as permitted by Rule 14a-6(e)(2)). ¨ Definitive Proxy Statement. ¨ Definitive Additional Material

May 31, 2007 8-K

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of The Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 30, 2007 THE BLACKROCK INCOME OPPORTUNITY TRUST INC. (Exact name of registrant as specified in its charter) MARYLAND (State or other jurisdiction of incorporation) 811-06443 (Comm

May 31, 2007 EX-99.1

Certain BlackRock Closed-End Funds Announce Shareholder Proposal Submission Date

Contact: 1-800-882-0052 Certain BlackRock Closed-End Funds Announce Shareholder Proposal Submission Date New York, May 30, 2007 — The BlackRock Closed-End Funds listed below (each a “Trust” and collectively, the “Trusts”) announced today that their annual meetings of shareholders will be held no later than September 30, 2007.

March 29, 2007 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number:__811-06443______

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number:811-06443 BlackRock Income Opportunity Trust, Inc. (Exact name of registrant as specified in charter) 100 Bellevue Parkway, Wilmington, DE 19809 (Address of principal executive offices) (Zip code) Ro

March 29, 2007 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER CERTIFICATIONS

c47521ex99-cert.htm - Converted by SEC Publisher, created by BCL Technologies Inc., for SEC Filing EX-99.CERT CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER CERTIFICATIONS I, Robert S. Kapito, certify that: 1. I have reviewed this report on Form N-Q of BlackRock Income Opportunity Trust, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to s

September 29, 2006 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

EX-99.CERT CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER CERTIFICATIONS I, Robert S. Kapito, certify that: 1. I have reviewed this report on Form N-Q of BlackRock Income Opportunity Trust, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under whi

September 29, 2006 N-Q

BlackRock Income Opportunity Trust, Inc. (Exact name of registrant as specified in charter)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number: 811-06443 BlackRock Income Opportunity Trust, Inc. (Exact name of registrant as specified in charter) 100 Bellevue Parkway, Wilmington, DE 19809 (Address of principal executive offices) (Zip code) R

July 20, 2006 DEFA14A

IMPORTANT NOTICE REGARDING YOUR INVESTMENT IN BLACKROCK CLOSED-END FUNDS 100 Bellevue Parkway Wilmington, Delaware 19809

PLEASE CAST YOUR VOTE TODAY IMPORTANT NOTICE REGARDING YOUR INVESTMENT IN BLACKROCK CLOSED-END FUNDS 100 Bellevue Parkway Wilmington, Delaware 19809 Dear Shareholder: Recently we sent you proxy material regarding the joint Special Meeting of Shareholders for the BlackRock Closed-End Funds to take place on August 23, 2006.

June 22, 2006 DEFA14A

Proposed Open End-Fund Family as of October 2006

SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

June 20, 2006 COVER

Securities and Exchange Commission

SKADDEN, ARPS, SLATE, MEAGHER & FLOM LLP FOUR TIMES SQUARE FIRM/AFFILIATE NEW YORK 10036-6522 OFFICES - TEL: (212) 735-3000 BOSTON FAX: (212) 735-2000 CHICAGO www.

June 20, 2006 DEFR14A

BLACKROCK CLOSED-END FUNDS PROXY STATEMENT FOR JOINT SPECIAL MEETING OF STOCKHOLDERS/SHAREHOLDERS TO BE HELD ON AUGUST 23, 2006

SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

June 16, 2006 DEF 14A

BLACKROCK CLOSED-END FUNDS PROXY STATEMENT FOR JOINT SPECIAL MEETING OF STOCKHOLDERS/SHAREHOLDERS TO BE HELD ON AUGUST 23, 2006

SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

June 16, 2006 COVER

SKADDEN, ARPS, SLATE, MEAGHER & FLOM LLP FOUR TIMES SQUARE NEW YORK 10036-6522 TEL: (212) 735-3000 FAX: (212) 735-2000 www.skadden.com

SKADDEN, ARPS, SLATE, MEAGHER & FLOM LLP FOUR TIMES SQUARE NEW YORK 10036-6522 TEL: (212) 735-3000 FAX: (212) 735-2000 www.

May 26, 2006 PRE 14A

[PRELIMINARY COPY – SUBJECT TO COMPLETION]

SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

May 26, 2006 COVER

End Funds

SKADDEN , ARPS , SLATE , MEAGHER & FLOM LLP FOUR TIMES SQUARE NEW YORK 10036-6522 FIRM/AFFILIATE OFFICES - BOSTON CHICAGO HOUSTON LOS ANGELES PALO ALTO SAN FRANCISCO WASHINGTON, D.

April 19, 2006 DEF 14A

BLACKROCK CLOSED-END FUNDS 100 BELLEVUE PARKWAY WILMINGTON, DELAWARE 19809 NOTICE OF JOINT ANNUAL MEETING OF STOCKHOLDERS/SHAREHOLDERS TO BE HELD ON MAY 23, 2006

SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

March 31, 2006 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

EX-99.CERT CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER CERTIFICATIONS I, Robert S. Kapito, certify that: 1. I have reviewed this report on Form N-Q of BlackRock Income Opportunity Trust, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under whi

March 31, 2006 N-Q

FORM N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number: 811-06443 BlackRock Income Opportunity Trust, Inc. (Exact name of registrant as specified in charter) 100 Bellevue Parkway, Wilmington, DE 19809 (Address of principal executive offices) (Zip code) R

March 29, 2006 PRE 14A

BLACKROCK CLOSED-END FUNDS 100 BELLEVUE PARKWAY WILMINGTON, DELAWARE 19809 NOTICE OF JOINT ANNUAL MEETING OF STOCKHOLDERS/SHAREHOLDERS TO BE HELD ON MAY 23, 2006

SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

September 29, 2005 EX-99.CERT

CERTIFICATIONS

EX-99.CERT CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER CERTIFICATIONS I, Robert S. Kapito, certify that: 1. I have reviewed this report on Form N-Q of BlackRock Income Opportunity Trust, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under whi

September 29, 2005 N-Q

FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number: 811-06443 BlackRock Income Opportunity Trust, Inc. (Exact name of registrant as specified in charter) 100 Bellevue Parkway, Wilmington, DE 19809 (Address of principal executive offices) (Zip code) R

July 11, 2005 SC 13G

SCHEDULE 13G SIGNATURE

SC 13G 1 blackrock.htm BLACKROCK INCOME OPP TRUST UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 13)* BLACKROCK INCOME OPP TRUST I (Name of Issuer) Closed End Mutual Fund (Title of Class of Securities) 092475102 (CUSIP Number) 06/30/2005 (Date of Event Which Requires Filing of this Statement) Check the a

April 21, 2005 DEF 14A

BLACKROCK CLOSED-END FUNDS 100 BELLEVUE PARKWAY WILMINGTON, DELAWARE 19809 NOTICE OF JOINT ANNUAL MEETING OF STOCKHOLDERS/SHAREHOLDERS TO BE HELD ON MAY 26, 2005

SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

April 13, 2005 SC 13G

SCHEDULE 13G SIGNATURE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 12)* BLACKROCK INCOME OPP TRUST I (Name of Issuer) Closed End Mutual Fund (Title of Class of Securities) 092475102 (CUSIP Number) 03/31/2005 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to w

April 1, 2005 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

EX-99.CERT CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER CERTIFICATIONS I, Robert S. Kapito, certify that: 1. I have reviewed this report on Form N-Q of BlackRock Income Opportunity Trust, Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under whi

April 1, 2005 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number:811-06443 BlackRock Income Opportunity Trust, Inc. (Exact name of registrant as specified in charter) 100 Bellevue Parkway, Wilmington, DE 19809 (Address of principal executive offices) (Zip code) Ro

April 1, 2005 PRE 14A

BLACKROCK CLOSED-END FUNDS PROXY STATEMENT FOR JOINT ANNUAL MEETING OF STOCKHOLDERS/SHAREHOLDERS TO BE HELD ON MAY 26, 2005

SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.

February 3, 2005 SC 13G

SCHEDULE 13G SIGNATURE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 11)* BLACKROCK INCOME OPP TRUST I (Name of Issuer) Closed End Mutual Fund (Title of Class of Securities) 092475102 (CUSIP Number) 12/31/2004 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to w

December 17, 2004 SC 13G/A

THIS PAPER DOCUMENT IS BEING SUBMITTED PURSUANT TO

THIS PAPER DOCUMENT IS BEING SUBMITTED PURSUANT TO RULE 901 9(d) OF REGULATION S-T UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

December 9, 2004 SC 13G

THIS PAPER DOCUMENT IS BEING SUBMITTED PURSUANT TO

THIS PAPER DOCUMENT IS BEING SUBMITTED PURSUANT TO RULE 901 9(d) OF REGULATION S-T UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

September 29, 2004 EX-99.CERT

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

c33517n-q Exhibit 99.Cert CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER CERTIFICATIONS I, Robert Kapito, certify that: 1. I have reviewed this report on Form N-Q of The BlackRock Income Opportunity Trust Inc.; 2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumst

September 29, 2004 N-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANY Investment Company Act file number: 811-06443 The BlackRock Income Opportunity Trust Inc. (Exact name of registrant as specified in charter) 100 Bellevue Parkway, Wilmington, DE 19809 (Address of principal executive offices) (Zip code

February 10, 2004 SC 13G

SCHEDULE 13G SIGNATURE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 9)* BLACKROCK INCOME OPPORTUNITY TRUST INC. (Name of Issuer) Closed End Mutual Fund (Title of Class of Securities) 092475102 (CUSIP Number) 12/31/2003 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pur

September 16, 2003 SC 13G

THIS PAPER DOCUMENT IS BEING SUBMITTED PURSUANT TO

THIS PAPER DOCUMENT IS BEING SUBMITTED PURSUANT TO RULE 901 9(d) OF REGULATION S-T UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

April 11, 2003 4

OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response. . .0.5 Filed By Romeo and Dye's Section 16 Filer www.section16.net

FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 OMB APPROVAL Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section

February 25, 2003 4

OMB Number: 3235-0287 Expires: January 31, 2005 Estimated average burden hours per response. . .0.5 Filed By Romeo and Dye's Section 16 Filer www.section16.net

FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 OMB APPROVAL Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section

February 12, 2003 SC 13G

SCHEDULE 13G SIGNATURE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 7)* Blackrock Income Opportunity Trust Inc (Name of Issuer) Closed End Mutual Fund (Title of Class of Securities) 092475102 (CUSIP Number) 12/31/2002 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule purs

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