As filed with the Securities and Exchange Commission on May 30, 2007 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM N-Q QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT INVESTMENT COMPANIES Investment Company Act file number: 811-21342 LEHMAN BROTHERS FIRST TRUST INCOME OPPORTUNITY FUND --------------------------------------------------- (Exact Name of the Registrant as Specified in Charter) 399 Park Avenue New York, New York 10022 (Address of Principal Executive Offices - Zip Code) Registrant's telephone number, including area code: (212) 526-7000 Peter E. Sundman, Executive Vice President Lehman Brothers First Trust Income Opportunity Fund 605 Third Avenue, 2nd Floor New York, New York 10158-0180 Arthur Delibert, Esq. Kirkpatrick & Lockhart Preston Gates Ellis LLP 1601 K Street, N.W. Washington, D.C. 20006-1600 (Names and addresses of agents for service) Date of fiscal year end: December 31, 2007 Date of reporting period: March 31, 2007 Form N-Q is to be used by management investment companies to file reports with the Commission not later than 60 days after the close of their first and third fiscal quarters, pursuant to rule 30b1-5 under the Investment Company Act of 1940 ("1940 Act") (17 CFR 270.30b1-5). The Commission may use the information provided on Form N-Q in its regulatory, disclosure review, inspection, and policymaking roles. A registrant is required to disclose the information specified by Form N-Q, and the Commission will make this information public. A registrant is not required to respond to the collection of information contained in Form N-Q unless the Form displays a currently valid Office of Management and Budget ("OMB") control number. Please direct comments concerning the accuracy of the information collection burden estimate and any suggestions for reducing the burden to Secretary, Securities and Exchange Commission, 100 F Street, NE, Washington, DC 20549-0609. The OMB has reviewed this collection of information under the clearance requirements of 44 U.S.C. {section} 3507. ITEM 1. SCHEDULE OF INVESTMENTS. LEHMAN BROTHERS FIRST TRUST INCOME OPPORTUNITY FUND SCHEDULE OF INVESTMENTS MARCH 31, 2007 (UNAUDITED) PRINCIPAL MOODY'S S&P FITCH AMOUNT DESCRIPTION RATINGS(*) RATINGS(*) RATINGS(*) VALUE(+) ------------------------------------------------------------------------------------------------------------------------------------ CORPORATE DEBT - 141.9% AEROSPACE/DEFENSE - 1.4% $ 1,830,000 L-3 Communications Corp., Guaranteed Senior Subordinated Notes 7.63%, due 6/15/12 Ba3 BB+ BB $ 1,884,900 825,000 L-3 Communications Corp., Guaranteed Notes, Ser. B 6.38%, due 10/15/15 Ba3 BB+ BB 817,781 ------------ 2,702,681 AIRLINES - 1.2% 1,959,187 Continental Airlines, Inc., Pass-Through Certificates 9.80%, due 4/1/21 Ba1 BB+ B- 2,174,698 APPAREL/TEXTILES - 0.6% 1,085,000 Levi Strauss & Co., Senior Unsubordinated Notes 9.75%, due 1/15/15 B2 B BB- 1,190,788 AUTO LOANS - 12.8% 1,610,000 Ford Motor Credit Co., Unsecured Notes 7.38%, due 10/28/09 B1 B BB- 1,607,041 6,870,000 Ford Motor Credit Co., Senior Unsecured Notes 9.75%, due 9/15/10 B1 B BB- 7,236,460 (n) 8,515,000 Ford Motor Credit Co., Bonds 7.38%, due 2/1/11 B1 B BB- 8,374,783 5,755,000 General Motors Acceptance Corp., Notes 6.88%, due 9/15/11 Ba1 BB+ BB+ 5,760,577 880,000 General Motors Acceptance Corp., Unsecured Notes 7.00%, due 2/1/12 Ba1 BB+ BB+ 884,148 ------------ 23,863,009 AUTO PARTS & EQUIPMENT - 0.7% 540,000 Goodyear Tire & Rubber Co., Senior Notes 8.63%, due 12/1/11 B2 B- CCC+ 580,500 (n) 685,000 Goodyear Tire & Rubber Co., Senior Notes 9.00%, due 7/1/15 B2 B- CCC+ 751,788 ------------ 1,332,288 AUTOMOTIVE - 4.0% 4,485,000 General Motors Corp., Senior Unsecured Debentures 8.25%, 7/15/23 Caa1 B- B 4,036,500 3,845,000 General Motors Corp., Senior Unsubordinated Notes 8.38%, due 7/15/33 Caa1 B- B 3,450,887 ------------ 7,487,387 BEVERAGE - 0.7% 1,365,000 Constellation Brands, Inc., Guaranteed Notes 7.25%, due 9/1/16 Ba3 BB- BB- 1,382,063 CHEMICALS - 4.2% 780,000 Chemtura Corp., Guaranteed Notes 6.88%, due 6/1/16 Ba1 BB+ 754,650 2,595,000 Hexion US Finance Corp., Senior Notes 9.75%, due 11/15/14 B3 B- 2,721,506 (n) 1 LEHMAN BROTHERS FIRST TRUST INCOME OPPORTUNITY FUND SCHEDULE OF INVESTMENTS CONTINUED MARCH 31, 2007 (UNAUDITED) PRINCIPAL MOODY'S S&P FITCH AMOUNT DESCRIPTION RATINGS(*) RATINGS(*) RATINGS(*) VALUE (+) ------------------------------------------------------------------------------------------------------------------------------------ CORPORATE DEBT - CONTINUED CHEMICALS - CONTINUED $ 760,000 Lyondell Chemical Co., Guaranteed Notes 8.25%, due 9/15/16 B1 B+ BB- $ 813,200 1,720,000 MacDermid, Inc., Senior Subordinated Notes 9.50%, due 4/15/17 Caa1 CCC+ 1,767,300 (n)(OO) 1,745,000 PQ Corp., Guaranteed Notes 7.50%, due 2/15/13 B3 B- 1,762,450 ------------ 7,819,106 CONSUMER - PRODUCTS - 2.0% 1,430,000 Amscan Holdings, Inc., Senior Subordinated Notes 8.75%, due 5/1/14 Caa1 CCC+ 1,404,975 2,340,000 Yankee Acquisition Corp., Senior Subordinated Notes 9.75%, due 2/15/17 Caa1 CCC+ 2,369,250 (n) ------------ 3,774,225 DIVERSIFIED CAPITAL GOODS - 0.3% 530,000 American Railcar Industries, Inc., Senior Unsecured Notes 7.50%, due 3/1/14 B1 BB- 544,575 (n) ELECTRIC - GENERATION 6.3% 2,050,000 Dynegy-Roseton Danskamme, Pass-Through Certificates, Ser. B 7.67%, due 11/8/16 Ba3 B 2,173,000 3,070,000 Midwest Generation LLC, Secured Notes 8.75%, due 5/1/34 Ba2 B+ BB+ 3,330,950 3,345,000 Mirant Americas Generation, Inc., Senior Unsecured Notes 8.30%, due 5/1/11 Caa1 B- B 3,428,625 1,325,000 NRG Energy, Inc., Guaranteed Notes 7.38%, due 2/1/16 B1 B- B+ 1,361,437 1,375,000 NRG Energy, Inc., Guaranteed Notes 7.38%, due 1/15/17 B1 B- B+ 1,411,094 ------------ 11,705,106 ELECTRONICS - 4.4% 3,045,000 Flextronics Int'l., Ltd., Senior Subordinated Notes 6.50%, due 5/15/13 Ba2 BB- BB 3,014,550 2,790,000 Freescale Semiconductor, Inc., Senior Notes 9.13%, due 12/15/14 B1 B 2,769,075 (n) 660,000 NXP BV Funding LLC, Secured Notes 7.88%, due 10/15/14 Ba2 BB+ 681,450 (n) 1,650,000 NXP BV Funding LLC, Senior Notes 9.50%, due 10/15/15 B2 B+ 1,703,625 (n) ------------ 8,168,700 ENERGY-EXPLORATION & PRODUCTION - 4.4% 670,000 Chesapeake Energy Corp., Guaranteed Notes 7.50%, due 9/15/13 Ba2 BB BB 700,150 1,345,000 Chesapeake Energy Corp., Guaranteed Notes 6.38%, due 6/15/15 Ba2 BB BB 1,338,275 475,000 Forest Oil Corp., Guaranteed Unsecured Notes 8.00%, due 12/15/11 B1 B+ 495,187 2 LEHMAN BROTHERS FIRST TRUST INCOME OPPORTUNITY FUND SCHEDULE OF INVESTMENTS CONTINUED MARCH 31, 2007 (UNAUDITED) PRINCIPAL MOODY'S S&P FITCH AMOUNT DESCRIPTION RATINGS(*) RATINGS(*) RATINGS(*) VALUE (+) ------------------------------------------------------------------------------------------------------------------------------------ CORPORATE DEBT - CONTINUED ENERGY-EXPLORATION & PRODUCTION - CONTINUED $ 840,000 Forest Oil Corp., Guaranteed Senior Unsecured Notes 7.75%, due5/1/14 B1 B+ $ 852,600 4,860,000 Sabine Pass L.P., Secured Notes 7.50%, due 11/30/16 Ba3 BB 4,896,450 (n) ------------ 8,282,662 ENVIRONMENTAL - 1.1% 1,375,000 Allied Waste North America, Inc., Guaranteed Notes 7.25%, due 3/15/15 B1 BB B+ 1,402,500 715,000 Allied Waste North America, Inc., Guaranteed Notes 6.88%, due 6/1/17 B1 BB B+ 716,787 ------------ 2,119,287 FOOD & DRUG RETAILERS - 1.7% 2,985,000 Jean Coutu Group PJC, Inc., Guaranteed Notes Caa2 B- CCC- 3,238,725 8.50%, due 8/1/14 FORESTRY/PAPER - 1.6% 535,000 Bowater, Inc., Senior Floating Rate Notes 8.35%, due 6/15/07 B3 B+ BB- 536,337 (u) 1,090,000 Bowater, Inc., Debentures 9.00%, due 8/1/09 B3 B+ BB- 1,141,775 1,200,000 Graphic Packaging Int'l., Inc., Guaranteed Notes 8.50%, due 8/15/11 B2 B- B 1,248,000 ------------ 2,926,112 GAMING - 6.1% 1,045,000 Chukchansi Economic Development Authority, Senior Notes 8.00%, due 11/15/13 B2 BB- 1,080,269 (n) 3,440,000 Majestic Star LLC, Senior Unsecured Notes 9.75%, due 1/15/11 Caa1 CCC+ 3,276,600 1,545,000 MGM Grand, Inc., Guaranteed Senior Notes 6.00%, due 10/1/09 Ba2 BB BB 1,546,931 460,000 Park Place Entertainment, Senior Subordinated Notes 7.88%, due 3/15/10 Ba1 B+ BB- 480,700 1,910,000 Pokagon Gaming Authority, Senior Notes 10.38%, due 6/15/14 B3 B 2,105,775 (n) 1,475,000 San Pasqual Casino, Notes 8.00%, due 9/15/13 B2 B+ 1,517,406 (n) 1,495,000 Station Casinos, Inc., Senior Unsecured Subordinated Notes 6.88%, due 3/1/16 Ba3 B 1,369,794 ------------ 11,377,475 GAS DISTRIBUTION - 7.0% 690,000 AmeriGas Partners, L.P., Senior Unsecured Notes 7.25%, due 5/20/15 B1 BB+ 696,900 670,000 AmeriGas Partners, L.P., Senior Notes 7.13%, due 5/20/16 B1 BB+ 671,675 1,635,000 Ferrellgas Partners L.P., Senior Unsecured Notes 8.75%, due 6/15/12 B2 B- 1,696,312 1,335,000 Kinder Morgan, Inc., Senior Notes 6.50%, due 9/1/12 Baa2 BB- BB 1,361,651 3 LEHMAN BROTHERS FIRST TRUST INCOME OPPORTUNITY FUND SCHEDULE OF INVESTMENTS CONTINUED MARCH 31, 2007 (UNAUDITED) PRINCIPAL MOODY'S S&P FITCH AMOUNT DESCRIPTION RATINGS(*) RATINGS(*) RATINGS(*) VALUE (+) ------------------------------------------------------------------------------------------------------------------------------------ CORPORATE DEBT - CONTINUED GAS DISTRIBUTION - CONTINUED $ 1,500,000 Kinder Morgan, Inc., Guaranteed Notes 5.70%, due 1/5/16 Baa2 BB- $ 1,406,411 3,500,000 Regency Energy Partners, Senior Unsecured Notes 8.38%, due 12/15/13 B2 B 3,570,000 (n) 1,415,000 Targa Resources, Inc., Guaranteed Notes 8.50%, due 11/1/13 B3 B- 1,443,300 (n) 2,025,000 Transcontinental Gas Pipe Line, Debentures 7.25%, due 12/1/26 Ba1 BB+ BBB- 2,192,062 ------------ 13,038,311 HEALTH SERVICES - 16.4% 2,540,000 CDRV Investors, Inc., Senior Floating Rate Notes 9.86%, due 6/1/07 Caa1 CCC+ 2,527,300 (n)(u) 4,010,000 CDRV Investors, Inc., Senior Unsecured Notes, Step-Up 0.00%/9.63%, due 1/1/15 Caa1 CCC+ 3,448,600 (^^) 2,750,000 HCA, Inc., Senior Unsecured Notes 6.50%, due 2/15/16 Caa1 B- CCC+ 2,340,937 5,930,000 HCA, Inc., Secured Notes 9.25%, due 11/15/16 B2 BB- B 6,396,987 (n) 740,000 Omnicare, Inc., Senior Subordinated Notes 6.13%, due 6/1/13 Ba3 BB+ 721,500 2,265,000 Omnicare, Inc., Guaranteed Notes 6.88%, due 12/15/15 Ba3 BB+ 2,284,819 1,200,000 Service Corp. Int'l., Senior Unsecured Notes 7.38%, due 10/1/14 B1 BB- 1,248,000 675,000 Service Corp. Int'l., Senior Notes 7.00%, due 6/15/17 B1 BB- 680,063 2,420,000 Service Corp. Int'l., Senior Notes 7.50%, due 4/1/27 B1 BB- 2,432,100 (n)(OO) 1,040,000 Spheris, Inc., Senior Subordinated Notes 11.00%, due 12/15/12 Caa1 CCC 1,037,400 1,390,000 US Oncology, Inc., Senior Unsecured Floating Rate Notes 9.80%, due 9/17/07 B3 B- 1,403,900 (n)(u) 3,485,000 US Oncology, Inc., Senior Unsecured Floating Rate Notes 10.58%, due 9/17/07 B1 B- 3,554,700 (u) 1,065,000 US Oncology, Inc., Guaranteed Notes 9.00%, due 8/15/12 B1 B- 1,136,888 1,320,000 Ventas Realty L.P., Guaranteed Senior Notes 6.50%, due 6/1/16 Ba2 BB+ BBB- 1,351,350 ------------ 30,564,544 INVESTMENTS & MISC. FINANCIAL SERVICES - 1.5% 2,680,000 Cardtronics, Inc., Guaranteed Notes 9.25%, due 8/15/13 B3 B- 2,814,000 LEISURE - 1.3% 1,210,000 AMF Bowling Worldwide, Inc., Guaranteed Notes 10.00%, due 3/1/10 B3 CCC+ 1,264,450 1,255,000 Royal Caribbean Cruises, Senior Unsubordinated Notes 7.50%, due 10/15/27 Ba1 BBB- 1,226,611 ------------ 2,491,061 4 LEHMAN BROTHERS FIRST TRUST INCOME OPPORTUNITY FUND SCHEDULE OF INVESTMENTS CONTINUED MARCH 31, 2007 (UNAUDITED) PRINCIPAL MOODY'S S&P FITCH AMOUNT DESCRIPTION RATINGS(*) RATINGS(*) RATINGS(*) VALUE (+) ------------------------------------------------------------------------------------------------------------------------------------ CORPORATE DEBT - CONTINUED MEDIA - BROADCAST - 9.1% $ 1,465,000 Clear Channel Communications, Inc., Senior Notes 5.50%, due 9/15/14 Baa3 BB+ BB- $ 1,296,975 2,865,000 CMP Susquehanna Corp., Senior Subordinated Notes 9.88%, due 5/15/14 B3 CCC 2,936,625 (n) 1,135,000 Entercom Radio/Capital, Guaranteed Senior Unsecured Notes 7.63%, due 3/1/14 B1 B 1,146,350 2,020,000 LIN Television Corp., Senior Subordinated Notes 6.50%, due 5/15/13 B1 B- 1,977,075 675,000 LIN Television Corp., Guaranteed Notes, Ser. B 6.50%, due 5/15/13 B1 B- 660,656 3,480,000 Paxson Communications, Secured Floating Rate Notes 11.61%, due 4/16/07 Caa2 CCC- 3,627,900 (n)(u) 2,540,000 Umbrella Acquisition, Inc., Senior Notes 9.75%, due 3/15/15 B3 CCC+ 2,530,475 (n) 1,315,000 Young Broadcasting, Inc., Guaranteed Notes 10.00%, due 3/1/11 Caa1 CCC- 1,295,275 1,560,000 Young Broadcasting, Inc., Senior Subordinated Note 8.75%, due 1/15/14 Caa1 CCC- 1,454,700 ------------ 16,926,031 MEDIA - CABLE - 4.3% 715,000 CCH I Holdings LLC, Guaranteed Notes 10.00%, due 5/15/14 Caa3 CCC CCC 638,138 3,453,000 CCH I Holdings LLC, Secured Notes 11.00%, due 10/1/15 Caa2 CCC CCC 3,582,487 1,350,000 Charter Communications Operating LLC, Senior Notes 8.00%, due 4/30/12 B3 B B 1,405,687 (n) 1,065,000 EchoStar DBS Corp., Guaranteed Notes 7.00%, due 10/1/13 Ba3 BB- BB- 1,096,950 1,355,000 EchoStar DBS Corp., Guaranteed Notes 7.13%, due 2/1/16 Ba3 BB- BB- 1,399,038 ------------ 8,122,300 MEDIA - SERVICES - 2.1% 1,330,000 WMG Acquisition Corp., Senior Subordinated Notes 7.38%, due 4/15/14 B2 B B+ 1,266,825 3,465,000 WMG Holdings Corp., Guaranteed Notes, Step-Up 0.00%/9.50%, due 12/15/14 B2 B B 2,650,725 (^^) ------------ 3,917,550 METALS/MINING EXCLUDING STEEL - 6.2% 950,000 Aleris Int'l., Inc., Senior Notes 9.00%, due 12/15/14 B3 B- 1,002,250 (n) 1,160,000 Aleris Int'l., Inc., Senior Subordinated Notes 10.00%, due 12/15/16 Caa1 B- 1,212,200 (n) 2,065,000 Arch Western Finance Corp., Guaranteed Notes 6.75%, due 7/1/13 B1 BB- 2,031,444 425,000 Freeport-McMoRan Copper & Gold, Senior Unsecured Notes 8.25%, due 4/1/15 Ba3 BB- BB- 457,406 2,205,000 Freeport-McMoRan Copper & Gold, Senior Unsecured Notes 8.38%, due 4/1/17 Ba3 BB BB- 2,384,156 5 LEHMAN BROTHERS FIRST TRUST INCOME OPPORTUNITY FUND SCHEDULE OF INVESTMENTS CONTINUED MARCH 31, 2007 (UNAUDITED) PRINCIPAL MOODY'S S&P FITCH AMOUNT DESCRIPTION RATINGS(*) RATINGS(*) RATINGS(*) VALUE (+) ------------------------------------------------------------------------------------------------------------------------------------ CORPORATE DEBT - CONTINUED METALS/MINING EXCLUDING STEEL - CONTINUED $ 3,855,000 Massey Energy Co., Guaranteed Senior Notes 6.88%, due 12/15/13 B2 B+ $ 3,657,431 775,000 Peabody Energy Corp., Guaranteed Senior Notes 6.88%, due 3/15/13 Ba1 BB BB+ 788,563 ------------ 11,533,450 NON-FOOD & DRUG RETAILERS - 2.0% 780,000 Blockbuster, Inc., Senior Subordinated Notes 9.00%, due 9/1/12 Caa2 CCC+ CC 787,800 1,225,000 Bon-Ton Department Stores, Inc., Guaranteed Notes 10.25%, due 3/15/14 B3 B- CCC 1,315,344 660,000 GSC Holdings Corp., Guaranteed Notes 8.00%, due 10/1/12 B1 B+ 699,600 1,500,000 Michaels Stores, Inc., Subordinated Notes, Step-Up 0.00%/13.00%, due 11/1/16 Caa1 CCC 945,000 (n)(^^) ------------ 3,747,744 PACKAGING - 4.6% 4,570,000 Ball Corp., Guaranteed Notes 6.88%, due 12/15/12 Ba1 BB BB 4,615,700 1,260,000 Crown Americas LLC, Guaranteed Notes 7.75%, due 11/15/15 B1 B B+ 1,310,400 860,000 Graham Packaging Co., Inc., Guaranteed Notes 9.88%, due 10/15/14 Caa1 CCC+ CCC 877,200 1,730,000 Owens-Brockway Glass Container, Inc., Guaranteed Notes 8.75%, due 11/15/12 Ba2 BB- BB- 1,820,825 ------------ 8,624,125 PRINTING & PUBLISHING - 8.5% 290,000 Dex Media West LLC, Senior Unsecured Notes, Ser. B 8.50%, due 8/15/10 B1 B B 303,413 580,000 Dex Media West LLC, Guaranteed Notes, Ser. B 9.88%, due 8/15/13 B2 B B- 632,925 2,960,000 Dex Media, Inc., Senior Unsecured Notes 8.00%, due 11/15/13 B3 B CCC+ 3,100,600 3,560,000 Idearc, Inc., Senior Notes 8.00%, due 11/15/16 B2 B+ 3,662,350 (n) 300,000 Primedia, Inc., Senior Floating Rate Notes 10.74%, due 5/15/07 B2 B 310,500 (u) 2,435,000 Primedia, Inc., Guaranteed Senior Unsecured Notes 8.88%, due 5/15/11 B2 B 2,501,962 3,130,000 R.H. Donnelley Corp., Senior Unsecured Notes, Ser A-3 8.88%, due 1/15/16 B3 B CCC+ 3,325,625 2,175,000 Reader's Digest Association, Inc., Senior Subordinated Notes 9.00%, due 2/15/17 Caa1 CCC+ 2,093,437 (n) ------------ 15,930,812 RAILROADS - 1.5% 2,640,000 TFM SA de C.V., Senior Notes 9.38%, due 5/1/12 B3 B- B+ 2,838,000 6 LEHMAN BROTHERS FIRST TRUST INCOME OPPORTUNITY FUND SCHEDULE OF INVESTMENTS CONTINUED MARCH 31, 2007 (UNAUDITED) PRINCIPAL MOODY'S S&P FITCH AMOUNT DESCRIPTION RATINGS(*) RATINGS(*) RATINGS(*) VALUE (+) ------------------------------------------------------------------------------------------------------------------------------------ CORPORATE DEBT - CONTINUED REAL ESTATE DEV. & MGT. -1.5% $ 1,470,000 American Real Estate Partners L.P., Guaranteed Note 7.13%, due 2/15/13 Ba3 BB+ $ 1,451,625 1,270,000 American Real Estate Partners, L.P., Senior Notes 8.13%, due 6/1/12 Ba3 BB+ 1,292,225 ------------ 2,743,850 RESTAURANTS - 0.6% 1,060,000 NPC Int'l., Inc., Guaranteed Notes 9.50%, due 5/1/14 Caa1 B- 1,097,100 SOFTWARE/SERVICES - 1.1% 1,955,000 SunGard Data Systems, Inc., Guaranteed Notes 9.13%, due 8/15/13 Caa1 B- B- 2,096,738 STEEL PRODUCERS/PRODUCTS - 1.0% 1,875,000 Tube City IMS Corp., Senior Subordinated Notes 9.75%, due 2/1/15 B3 B- 1,950,000 (n) SUPPORT - SERVICES - 8.2% 845,000 Aramark Corp., Senior Floating Rate Notes 8.86%, due 5/1/07 B3 B- B- 868,238 (n)(u) 1,360,000 Aramark Corp., Senior Notes 8.50%, due 2/1/15 B3 B- B- 1,414,400 (n) 475,000 Education Management LLC, Guaranteed Notes 8.75%, due 6/1/14 B2 CCC+ 499,938 3,645,000 Knowledge Learning Corp., Inc., Guaranteed Notes 7.75%, due 2/1/15 B2 B- 3,581,212 (n) 3,105,000 Language Line, Inc., Guaranteed Notes 11.13%, due 6/15/12 B3 CCC+ 3,299,062 3,105,000 Monitronics Int'l., Inc., Guaranteed Notes 11.75%, due 9/1/10 B3 B- 3,244,725 2,230,000 Rural/Metro Corp., Guaranteed Notes 9.88%, due 3/15/15 B3 CCC+ 2,363,800 ------------ 15,271,375 TELECOM - FIXED LINE - 0.5% 845,000 Level 3 Financing, Inc., Senior Notes 9.25%, due 11/1/14 B3 CCC+ B 868,238 (n) TELECOM - INTEGRATED/SERVICES - 8.3% 4,250,000 Citizens Utilities Co., Bonds 7.13%, due 3/15/19 Ba2 BB+ BB 4,265,937 (n) 1,335,000 Dycom Industries, Inc., Guaranteed Notes 8.13%, due 10/15/15 Ba3 B+ 1,401,750 2,200,000 Intelsat Bermuda Ltd., Guaranteed Notes 9.25%, due 6/15/16 B2 B+ BB- 2,436,500 (n) 1,020,000 Nordic Telephone Co. Holdings, Secured Notes 8.88%, due 5/1/16 B2 B B+ 1,091,400 (n) 1,095,000 Qwest Corp., Senior Notes 7.88%, due 9/1/11 Ba1 BB+ BBB- 1,163,438 1,495,000 Qwest Corp., Notes 8.88%, due 3/15/12 Ba1 BB+ BBB- 1,651,975 1,340,000 Windstream Corp., Guaranteed Notes 8.13%, due 8/1/13 Ba3 BB- BB+ 1,450,550 7 LEHMAN BROTHERS FIRST TRUST INCOME OPPORTUNITY FUND SCHEDULE OF INVESTMENTS CONTINUED MARCH 31, 2007 (UNAUDITED) PRINCIPAL MOODY'S S&P FITCH AMOUNT DESCRIPTION RATINGS(*) RATINGS(*) RATINGS(*) VALUE (+) ------------------------------------------------------------------------------------------------------------------------------------ CORPORATE DEBT - CONTINUED TELECOM - INTEGRATED/SERVICES - CONTINUED $ 1,910,000 Windstream Corp., Guaranteed Notes 8.63%, due 8/1/16 Ba3 BB- BB+ $ 2,089,062 ------------ 15,550,612 THEATERS & ENTERTAINMENT - 1.6% 1,230,000 AMC Entertainment, Inc., Guaranteed Notes, Ser. B 8.63%, due 8/15/12 Ba3 B- B 1,303,800 1,455,000 AMC Entertainment, Inc., Guaranteed Notes 11.00%, due 2/1/16 B3 CCC+ CCC+ 1,656,881 ------------ 2,960,681 TRANSPORTATION EXCLUDING AIR/RAIL - 1.1% 2,055,000 Stena AB, Senior Unsecured Notes 7.00%, due 12/1/16 Ba3 BB- 2,034,450 TOTAL CORPORATE DEBT (IDENTIFIED COST $250,191,821) 265,209,859 NUMBER OF SHARES SHORT-TERM INVESTMENTS - 6.0% 11,191,616 Neuberger Berman Prime Money Fund Trust Class 11,191,616 (#)(@) (COST $11,191,616) TOTAL INVESTMENTS - 147.9% 276,401,475 (##) (IDENTIFIED COST $268,383,437) Other Assets, Less Liabilities - 0.4% 759,261 (@@) Money Market Cumulative Preferred Shares plus cumulative unpaid dividends (48.3%) (90,297,687) TOTAL NET ASSETS APPLICABLE TO COMMON SHAREHOLDERS - 100% $186,863,049 See Notes to Schedule of Investments 8 LEHMAN BROTHERS MARCH 31, 2007 (UNAUDITED) NOTES TO SCHEDULE OF INVESTMENTS -------------------------------- (+) Investments in debt securities by Lehman Brothers First Trust Income Opportunity Fund (the "Fund") are valued using an independent pricing service approved by the Board of Trustees, which utilizes closing market prices, market quotations and transactions, quotations from dealers and various relationships among securities in determining value. Securities for which closing market prices or market quotations are not available or are not considered by Neuberger Berman Management Inc. to be reflective of a security's market value, are valued at fair value as determined in good faith by methods established by and under the supervision of the Board of Trustees. Criteria considered in making this determination may include, but are not limited to, a review of other securities by the same issuer for which market quotations are available, recent bid and ask prices for the security, the issuer's position in an economic outlook of the industry and, if necessary, a review of similar securities in similar industries. Securities with remaining maturities of 60 days or less are valued at amortized cost. This method involves valuing a portfolio security initially at its cost and thereafter assumes a constant amortization to maturity of any discount of premium. (#) At cost, which approximates market value. (##) At March 31, 2007, the cost of investments for U.S. federal income tax purposes was $268,616,728. Gross unrealized appreciation of investments was $8,584,551 and gross unrealized depreciation of investments was $799,804, resulting in net unrealized appreciation of $7,784,747, based on cost for U.S. federal income tax purposes. @ Neuberger Berman Prime Money Fund ("Prime Money") is also managed by Neuberger Berman Management Inc. and may be considered an affiliate since it has the same officers, Board members, and investment manager as the Fund and because, at times, the Fund may own 5% or more of the outstanding voting securities of Prime Money. (n) Restricted security subject to restrictions on resale under federal securities laws. These securities may be resold in transactions exempt from registration, normally to qualified institutional buyers under Rule 144A, and have been deemed by the investment manager to be liquid. At March 31, 2007, these securities amounted to $83,639,077 or 44.8% of net assets applicable to common shareholders. (^^) Denotes a step-up bond: a zero coupon bond that converts to a fixed rate of interest at a designated future date. (00) All or a portion of this security is segregated as collateral for interest rate swap contracts. (u) Denotes a floating rate security, which is a security whose yields vary with a designated market index or market rate. These securities are shown at their current rates as of March 31, 2007. (*) Where no rating appears from any NRSRO, the security is deemed unrated. (@@) At March 31, 2007, the Fund had outstanding the following interest rate swap contract: RATE TYPE ------------------------- FIXED-RATE VARIABLE-RATE ACCRUED NET PAYMENTS PAYMENTS INTEREST UNREALIZED SWAP COUNTER NOTIONAL TERMINATION MADE BY RECEIVED BY RECEIVABLE APPRECIATION TOTAL FAIR PARTY AMOUNT DATE THE FUND THE FUND(1) (PAYABLE) (DEPRECIATION) VALUE Citibank, N.A. $22,500,000 September 28, 2007 3.22% 5.32% $3,930 $230,690 $234,620 (1) 30 day LIBOR (London Interbank Offered Rate) at March 26, 2007. For information on the Fund's significant accounting policies, please refer to the Fund's most recent financial statements. ITEM 2. CONTROLS AND PROCEDURES. (a) Based on an evaluation of the disclosure controls and procedures (as defined in rule 30a-3(c) under the Investment Company Act of 1940, as amended (the "Act")) as of a date within 90 days of the filing date of this document, the Chief Executive Officer and Treasurer and Principal Financial and Accounting Officer of the Registrant have concluded that such disclosure controls and procedures are effectively designed to ensure that information required to be disclosed by the Registrant on Form N-CSR and Form N-Q is accumulated and communicated to the Registrant's management to allow timely decisions regarding required disclosure. (b) There were no significant changes in the Registrant's internal controls over financial reporting (as defined in rule 30a-3(d) under the 1940 Act) that occurred during the Registrant's last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the Registrant's internal control over financial reporting. ITEM 3. EXHIBITS The certifications required by Rule 30a-2(a) of the 1940 Act are filed herewith. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. Lehman Brothers First Trust Income Opportunity Fund By: /s/Peter E. Sundman ---------------------- Peter E. Sundman Chief Executive Officer Date: May 29, 2007 Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated. By: /s/ Peter E. Sundman ---------------------- Peter E. Sundman Chief Executive Officer Date: May 29, 2007 By: /s/ John M. McGovern --------------------- John M. McGovern Treasurer and Principal Financial and Accounting Officer Date: May 29, 2007