The Investment Income Builder Fund employs a mix of equities and bonds. The equity component is a diversified portfolio consisting of both foreign and domestic companies with histories of paying dividends and showing the capacity to increase them. It is typically weighted towards sectors with traditionally high payout ratios, such as utilities, financials, and REITs. The bond component earns income and mitigates the volatility of returns from the equity component. The asset mix normally focuses on the corporate sector and may include exposure to convertibles, preferred stocks, and high-yield instruments.
Holdings as of 5/31/2010
Domestic Equity
Ticker Company Name % of Portfolio MCD McDonald's Corp. 2.1% PM W Philip Morris 1.9% AINV Apollo Investment Corp. 1.8% LLY Eli Lilly & Co. 1.8% MSFT Microsoft Corp. 1.6% KO Coca Cola Co. 1.4% D Dominion Resources, Inc. 1.4% NLY Annaly Capital Management, Inc. 1.4% Q Qwest Communications International, Inc. 1.3% INTC Intel Corp. 1.2% PAYX Paychex, Inc. 1.2% CIM Chimera Investment Corp. 1.2% MFA MFA Financial, Inc. 1.1% KFN KKR Financial Holdings, LLC 1.1% DD E. I. du Pont de Nemours & Co. 1.0% LO Lorillard, Inc. 0.9% IVR Invesco Mortgage Capital, Inc. 0.8% SYY Sysco Corp. 0.8% ARCC Ares Capital Corp. 0.7% SLRC Solar Capital Ltd. 0.6% CTL CenturyTel, Inc. 0.5% AB AllianceBernstein Holdings LP 0.4% ANH Anworth Mtg Asset Corp. 0.4% ARI Apollo Commercial Real Estate Finance, Inc. 0.3% ETR Entergy Corp. 0.3% MCY Mercury General Corp. 0.3% PSEC Prospect Capital Corp. 0.1%
Foreign Equity
Ticker Company Name % of Portfolio ENEL IM Enel S.p.A. 2.4% TLS AU Telstra Corp. Ltd. 2.3% FTE FP France Telecom SA 2.3% FP FP Total SA 2.3% VOD LN Vodafone Group plc 2.2% ENI IM Eni SpA 2.1% 2330 TT Taiwan Semiconductor Manufacturing Co. Ltd. 1.8% TEF SM Telefonica SA 1.6% EOAN GR E. ON AG 1.5% KPN NA Koninklijke KPN N.V. 1.5% LLB SW Liechtensteinische Landesbank AG 1.5% 941 HK China Mobile Ltd. 1.3% MAP AU Macquarie Airports 1.2% OPAP GA OPAP SA 1.0% MTS AU Metcash Ltd. 0.7% SCR FP Scor SE 0.7% COS-U CN Canadian Oil Sands Trust 0.5% SEK AU Seek Ltd. 0.5% ISPR IM Intesa Sanpaolo 0.5% SGKN SW St. Galler Kantonalbank 0.5% SDRL NO Seadrill Ltd. 0.5% 388 HK Hong Kong Exchanges & Clearing Ltd. 0.5% BCVN SW Banque Cantonale Vaudoise 0.4% ZURN VX Zurich Financial Services AG 0.4% FOE NO Fred Olsen Energy ASA 0.4% BST MK Berjaya Sports Toto Berhad 0.4% FGL AU Fosters Group Ltd. 0.4% EMG LN Man Group plc. 0.4% PCU Southern Copper Corp. 0.4% DXS AU Dexus Property Group 0.4% BME SM Bolsas y Mercados Espanoles 0.3% HELN SW Helvetia Holding AG 0.2% IMP SJ Impala Platinum Holdings Ltd. 0.2% 737 HK Hopewell Highway 0.2% AQN CN Algonquin Power & Utilities Corp. 0.2% AQN CN Algonquin Power & Utilities Corp. 0.1%
Preferred Equity
CUSIP Company Name % of Portfolio 446150401 Huntington Bancshares Pfd, 8.50% 1.9% 316773209 Fifth Third Bancorp Pfd, 8.50% 1.1% 17315D204 Citigroup Capital XII Pfd, 8.50% 0.3% 549462307 Lucent Technologies Capital Trust I Pfd, 7.75% 0.3% 015271505 Alexandria Real Estate Pfd, 7.00% 0.2% 337158208 First Tennessee Bank Pfd, 3.75% 0.2% 060505625 Bank of America Corp. Pfd, 3.00% 0.1% 06739H776 Barclays Bank plc Pfd, 7.10% 0.1% 84610XAA1 Sovereign REIT Pfd, 12.00% 0.1% 61747s504 Morgan Stanley Pfd, 4.00% 0.0%
Domestic Bonds
CUSIP Company Name % of Portfolio 87089AAA6 Swiss Re Capital I, LP 2.2% 48248AAB4 KKR Financial Holdings LLC 1.3% 464288513 iShares High Yield Corporate Bond 1.1% 29268BAB7 Enel Finance International S.A. 0.8% EF9167844 Southern Cross Air Corp. 0.8% 25156PAC7 Deutsche Telekom International Finance B.V. 0.7% 14040HAN5 Capital One Financial Corp. 0.5% 59156CAB7 Metlife Capital Trust X 0.5% 52913FAJ1 NII Holdings 0.5% 827065AB9 Silicon Valley Bank 0.5% 78463X202 SPDR Euro Stoxx 50 0.5% 882587AY4 Texas-New Mexico Power 0.5% 844030AH9 Southern Union Co. 0.5% 65473QAS2 NiSource Finance Corp. 0.4% 67059TAA3 NuStar Logistics 0.4% 45746UBG3 Dominion Resources, Inc. 0.4% 689648AR4 Otter Tail Corp. 0.4% 88732JAP3 Time Warner Cable, Inc. 0.4% 172967CQ2 Citigroup, Inc. 0.3% 46625HHA1 JPMorgan Chase & Co. 0.3% 893521AA2 Transatlantic Holdings, Inc. 0.3% 12626PAJ2 CRH America, Inc. 0.3% 65473QAK9 NiSource Finance Corp. 0.3% 02209SAD5 Altria Group, Inc. 0.3% 629658AT3 Nabors Industries, Inc. 0.3% 398186AA4 Griffin Coal Mining Ltd. 0.3% 29250RAR7 Enbridge Energy Partners LP 0.3% 4458304 iShares Euro Stoxx 50 0.2% 153443AD8 Central European Media 0.2% 494550AZ9 Kinder Morgan Energy Partners 0.2% 78442FDP0 SLM Corp. 0.2% 637640AC7 National Semiconductor Corp. 0.2% 482480AA8 KLA Instruments Corp. 0.2% 97381WAC8 Windstream Corp. 0.2% 81763TAA1 Corporativo Javer SA 0.2% 008477AA9 Agile Property Holdings Ltd. 0.2% 844895AS1 Southwest Gas Corp. 0.2% 87973FAA4 Telvent Git SA 0.2% 816851AK5 Sempra Energy 0.2% 614853CJ6 Ville De Montreal 0.2% 293791AW9 Enterprise Products Operating LP 0.2% 693475AJ4 PNC Financial Services Group, Inc. 0.2% 30225VAA5 Extra Space Storage LP 0.2% 68268NAE3 Oneok Partners LP 0.2% 02360XAL1 Amerenenergy Generating 0.2% 980236AG8 Woodside Financial Ltd. 0.2% LN334321 Global Crossing Ltd. 0.2% 44965TAA5 International Lease Finance Corp. E-Capital Trust I 0.2% 74728GAA8 QBE Insurance Group Ltd. 0.2% 527298AM5 Level 3 Financing, Inc. 0.2% 05964UAA4 Banco Industrial e Comercial S.A. 0.2% 233393AC1 Da-Lite Screen Co., Inc. 0.2% 29365PAN2 Entergy Gulf States Louisiana, LLC 0.2% 35671DAR6 Freeport-McMoRan Copper & Gold 0.2% 000333AD6 American Airlines Depositor Corp. 0.2% 02666QD75 American Honda Finance 0.2% 165167CB1 Chesapeake Energy Corp. 0.2% 12958RAA5 Calfrac Holdings LP 0.2% 87944LAD1 Telemar Norte Leste SA 0.2% 040555CL6 Arizona Public Service Co. 0.2% 973735AY5 Windsor Petroleum Transport Corp. 0.2% 570362AB9 Maritimes & Northeast Pipeline, LLC 0.2% 38141GEU4 Goldman Sachs Group, Inc. 0.2% 18911MAA9 Cloud Peak Energy, Inc. 0.2% 767754BQ6 Rite Aid Corp. 0.2% 36294BAC8 GS Caltex Corp. 0.2% 00850LAA2 Agribank FCB 0.2% 31620PAB9 GTL Trade Finance, Inc. 0.1% 637432LR4 National Rural Utilities CFC 0.1% 416515AW4 Hartford Financial Services Group 0.1% 05530QAB6 B.A.T. International Finance, plc 0.1% 452092CX5 Illinois Power Co. 0.1% 984332AC0 Yahoo! Inc. 0.1% 61747YBA2 Morgan Stanley 0.1% 23311RAC0 DCP Midstream LLC 0.1% 20029PAG4 Comcast Cable Communications 0.1% 48248AAD0 KKR Financial Holdings LLC 0.1% 219350AQ8 Corning, Inc. 0.1% 743849EU1 Provident Bank MD 0.1% 31395NPD3 Federal National Mtg Association REMIC Series 2006-B1 Class AB 0.1% 872384AC6 Teppco Partners LP 0.1% 379336AE0 Global Industries Ltd. 0.1% 0258M0CW7 American Express Credit Co. 0.1% 35671DAS4 Freeport-McMoRan Copper & Gold 0.1% 626717AB8 Murphy Oil Corp. 0.1% 74438GAE1 Prudential Holdings, LLC 0.1% 140422AA4 Capital One Capital IV 0.1% 20162UAB1 Commercial Barge Line Co. 0.1% 25459HAD7 DIRECTV Holdings LLC 0.1% 092113AF6 Black Hills Corp. 0.1% 63536MAA0 National City Bank 0.1% 459745FS9 International Lease Finance Corp. 0.1% 29379VAD5 Enterprise Products Operating LP 0.1% 52729NBF6 Level 3 Communications, Inc. 0.1% 88732JAQ1 Time Warner Cable, Inc. 0.1% 055921AA8 BMC Software, Inc. 0.1% 02209SAC7 Altria Group, Inc. 0.1% 90263MAE4 Vimpelcom 0.1% 69349DAA4 PNC Preferred Funding Trust III 0.1% 98876YAA8 ZFS Finance USA Trust II 0.1% 654679AA7 Niska Gas Storage 0.1% 086516AJ0 Best Buy, Inc. 0.1% 71657YAD4 Petro Co. Trinidad Tobago Ltd. 0.1% 59156RAR9 Metlife, Inc. Series A 0.1% 74733HAA9 QHP PhaRMA 0.1% 37932JAB9 Global Crossing Ltd. 0.1% 668457AA2 Northwind Holdings, LLC Series 2007-1A Class A1 0.1% 78442FEF1 SLM Corp. LIBOR Floating Rate Note 0.1% 87927VAQ1 Telecom Italia Capital SA 0.1% 00441AAA2 Ace Hardware Corp. 0.1% EG6040844 Bemax Resources Ltd. 0.1% 717265AM4 Freeport-McMoRan Corp. 0.1% 034863AA8 Anglo American Capital 0.1% 989194AA3 Zayo Group LLC 0.1% 01039XAA8 Alabama Power Capital Trust V 0.1% 589499AA0 Merge Healthcare, Inc. 0.1% 85224CAA2 SquareTwo Financial Corp. 0.1% EH8902478 Wind Acquisition Finance SA 0.1% 22282EAA0 Covanta Holding Corp. 0.1% 040555CH5 Arizona Public Service Co. 0.1% 302570AX4 FPL Group Capital, Inc. 0.1% 716745AA2 Petroplus Finance Ltd. 0.1% 01741RAC6 Allegheny Technologies, Inc. 0.1% 015386AD7 Alfa Diversified 0.1% 677879CE6 Oil Insurance Ltd. 0.1% 635421AA8 National City Preferred Capital Trust I 0.1% 817155AA2 Seneca Nation of Indians Capital Improvements Authority 0.1% EF2971135 Morgan Stanley 0.1% 25459HAG0 DIRECTV Holdings LLC 0.1% 68268NAA1 Oneok Partners LP 0.1% 035229CX9 Anheuser Busch Cos., Inc. 0.1% 302154AT6 Export-Import Bank of Korea 0.1% 918005AY5 Aquila, Inc. 0.1% 120468AA1 Bumi Capital PTE, Ltd. 0.1% 784662AA6 SSI INVESTMENT II 0.1% 989701AX5 Zions Bancorp 0.1% 316773CJ7 Fifth Third Bancorp 0.1% 59020ULT0 Merrill Lynch Mtg Investors Trust 0.1% 906548CG5 Union Electric Co. 0.1% 536576AB7 Listrindo Capital BV 0.1% 88652YAA9 Tiers Inflation Linked Trust Series Wyeth 2004 21 Trust Certificate CPI Floating Rate Note 0.1% 29348QAB8 Enogex LLC 0.1% 94986EAA8 Wells Fargo Capital XIII Preferred Note 0.1% 20035AAA2 Comed Financing III 0.1% 91081QAA1 United Maritime, LLC 0.1% 767754BM5 Rite Aid Corp. 0.0% 39121JAA8 Great River Energy 0.0% 816851AL3 Sempra Energy 0.0% 610202BM4 Monongahela Power Co. 0.0% 636792AA1 National Life Insurance of Vermont 0.0% 25380QAB5 Digicel SA 0.0% 29348QAA0 Enogex LLC 0.0% EG4755476 Parkson Retail Group 0.0% 976657AH9 Wisconsin Energy Corp. 0.0% 55263ECH6 MBNA Corp. 0.0% 637640AD5 National Semiconductor Corp. 0.0% 368287AE8 Gaz Capital SA 0.0% 811904AK7 Seacor Holdings, Inc. 0.0% 04523XAA5 Aspect Software, Inc. 0.0% 727610AE7 Plastipak Holdings, Inc. 0.0% 6944P0AB1 Pacific Life Global Funding CPI Floating Rate Note 0.0% 78442FCT3 SLM Corp. 0.0% 88633PABO Ticketmaster 0.0% 926004CH3 Victor New York 0.0% 939653AJ0 Washington REIT 0.0% 949781AG3 Wells Fargo Asset Securities Corp., Series 2005-AR2 Class B1 0.0% 94769YAA7 Webster Capital Trust IV 0.0% 12518TAA4 C8 Capital Ltd. 0.0% 614853CJ6 ZFS Finance USA Trust V 0.0% 637640AE3 National Semiconductor Corp. 0.0% 315292AG7 Ferrellgas Partners LP 0.0% 53079EAC8 Liberty Mutual Group, Inc. 0.0% 949781AG2 Wells Fargo Asset Securities Corp., Series 2005-AR2 Class B1 0.0% 165167BJ5 Chesapeake Energy Corp. 0.0% 726505AF7 Plains Exploration & Production Co. 0.0% 05949AJ50 Banc of America Mtg Securities Series 2005-A Class B1 0.0% 02635PTB9 American General Finance Corp. 0.0% 17307GEF1 Citigroup Mtg Loan Trust, Inc. 0.0% 500630BP2 Korea Development Bank 0.0% EF1309683 SLM Corp. 0.0% 12958RAA5 Seitel, Inc. 0.0% EF6961272 Shinhan Bank 0.0% 01958XBK2 Allied Waste North America, Inc. 0.0% 86359AGS6 Structured Asset Security Corp. Series 2002-27A Class B1 0.0% 00184AAF2 AOL Time Warner, Inc. 0.0% 05951VAN9 Banc of America Funding Corp. Series 2006-I Class SB1 0.0% 07384MXJ6 Bear Stearns ARM Mtg Series 2003-6 Class 2B-1 0.0% 94106LAK5 Waste Management, Inc. 0.0% 5150X4AA1 Landsbanki Islands HF 0.0%
Foreign Bonds
CUSIP Company Name % of Portfolio B0LCVJ0 Republic of Brazil (BRL) 0.2% EH9438399 New South Wales Treasury Corp. (AUD) 0.2% 98704CQD1 Regional Muni of York (CAD) 0.1% 02319LAB1 Ambev International Finance Co., Ltd. (BRL) 0.1% 652478AT5 News America Holdings (AUD) 0.1% EG3891660 ELM BV (AUD) 0.0% 220874AD3 Corus Entertainment (CAD) 0.0% EH9648674 Wesfarmers Ltd. (AUD) 0.0% EG9248725 FU JI Food and Catering (HKD) 0.0%
Special Situations
CUSIP Company Name % of Portfolio 90210EAG1 Texas Comp Electric Holdings LLC 0.2% 6285349B7 Mylan Laboratories, Inc. 0.1% 90210EAF3 Texas Comp Electric Holdings LLC 0.1% 12499L9S7 Crown Castle Operating Co. 0.1% 90210EAE6 Texas Comp Electric Holdings, LLC 0.0% 90299K9U2 Texas Comp Electric Holdings LLC 0.0% 90299R9Y9 Texas Comp Electric Holdings LLC 0.0% 90210EAD8 Texas Comp Electric Holdings LLC 0.0%
      Cash 2.1%
The securities mentioned above are provided for the general information of Thornburg Investment Income Builder Fund shareholders. This information should not be interpreted as a buy or sell recommendation. It should not be assumed that the investments in the securities were or will be profitable.
It is probable that buying or selling in the Thornburg Investment Income Builder Fund portfolio will have occurred since this list was last updated. As a result of this buying or selling, the fund may own more, fewer, or no shares of the stock of any company listed. In addition, the fund may have purchased shares of companies that are not yet included in the above list.
Holdings can and do vary over time.

