T. Rowe Price U.S. Treasury Long-Term Index Fund Z Class (TRZUX)

This fund is primarily allocated to inflation-protected bonds, committing a minimum of 80% of its total portfolio value (including assets acquired through borrowing) to these securities. Its primary holdings will be domestic government-issued securities, such as Treasury Inflation-Protected Securities (TIPS), though it also has the flexibility to acquire comparable instruments from U.S. government-sponsored enterprises and American corporate entities. A portion of its inflation-indexed bond allocation, specifically up to 20%, may originate from international governments or companies, with their returns tied to inflation metrics outside the U.S. Furthermore, the fund is permitted to allocate a maximum of 20% of its total capital to conventional fixed-income instruments that do not feature inflation linkage.