TLT

The iShares 20+ Year Treasury Bond ETF (TLT) invests in U.S. Treasury securities with maturities of at least 20 years, giving it a focus on the long‑duration government bond sector and limiting exposure to a single geographic region, the United States. The fund seeks to track the Bloomberg U.S. Treasury 20+ Year Index by holding a representative basket of these bonds and reinvesting interest payments, providing a passive, index‑based approach to long‑term sovereign debt. Because the ETF offers exposure to the longest‑dated U.S. government bonds, it is generally suited for investors who want a low‑credit‑risk, long‑duration component for portfolio diversification, potential inflation protection, or a hedge against deflationary environments, and who can tolerate the higher price volatility that accompanies interest‑rate movements.