Thornburg Core Growth Fund
The Fund declared the following long-term capital gain distributions in 2007.
| Amount per share | ||||
| Record Date | Payable Date | Short-term1 | Long-term | |
| Class A | 11/16/07 | 11/19/07 | n/a | 0.01139 |
| Class C | 11/16/07 | 11/19/07 | n/a | 0.01139 |
| Class I | 11/16/07 | 11/19/07 | n/a | 0.01139 |
| Class R3 | 11/16/07 | 11/19/07 | n/a | 0.01139 |
| Class R4 | 11/16/07 | 11/19/07 | n/a | 0.01139 |
| Class R5 | 11/16/07 | 11/19/07 | n/a | 0.01139 |
(1) Short-term gains are treated as ordinary income for tax purposes.
The dividend paid on November 19, 2007, was all U.S. sourced dividend.
Tax rules are complex. Please consult your tax advisor.
Investments in the Fund carry risks including possible loss of principal. Investing outside the United States involves additional risks, such as currency fluctuations. Additionally, the Fund invests a portion of the assets in small capitalization companies, which may increase the risk of greater price fluctuations. Investments in the Fund are not FDIC insured, nor are they deposits of or guaranteed by a bank or any other entity.
Carefully consider the Fund’s investment objectives, risks, sales charges, and expenses; these are found in the prospectus, which is available from your financial advisor or from our download library. Read it carefully before you invest or send money.

