Thornburg Investment Income Builder Fund – 4th Quarter Update

Important Information

Before investing, carefully consider the Fund's investment goals, risks, charges, and expenses. For a prospectus or summary prospectus containing this and other information, contact your financial advisor or visit thornburg.com. Read them carefully before investing.

The performance data quoted represents past performance; it does not guarantee future results.

The views expressed are subject to change and do not necessarily reflect the views of Thornburg Investment Management, Inc. This information should not be relied upon as a recommendation or investment advice and is not intended to predict the performance of any investment or market.

This is not a solicitation or offer for any product or service. Nor is it a complete analysis of every material fact concerning any market, industry, or investment. Data has been obtained from sources considered reliable, but Thornburg makes no representations as to the completeness or accuracy of such information and has no obligation to provide updates or changes. Thornburg does not accept any responsibility and cannot be held liable for any person's use of or reliance on the information and opinions contained herein.

Investments carry risks, including possible loss of principal. Additional risks may be associated with investments outside the United States, especially in emerging markets, including currency fluctuations, illiquidity, volatility, and political and economic risks. Investments in small- and mid-capitalization companies may increase the risk of greater price fluctuations. Portfolios investing in bonds have the same interest rate, inflation, and credit risks that are associated with the underlying bonds. The value of bonds will fluctuate relative to changes in interest rates, decreasing when interest rates rise. Investments in the Fund are not FDIC insured, nor are they bank deposits or guaranteed by a bank or any other entity.

Neither the payment of, or increase in, dividends is guaranteed.

There is no guarantee that the Fund will meet its investment objectives.

Any securities, sectors, or countries mentioned are for illustration purposes only. Holdings are subject to change. Under no circumstances does the information contained within represent a recommendation to buy or sell any security.

All portfolio information is subject to change.

The potential long-term impacts of the pandemic remain uncertain and difficult to assess, and there is no assurance that a particular business strategy or product will limit potential investment losses.

Please see our glossary for a definition of terms.

Thornburg mutual funds are distributed by Thornburg Securities LLC.