STOT is an actively managed fund that invests in short-term investment grade and high-yield debt, targeting a weighted average effective duration between one and three years. Managed by Jeffrey Gundlach's DoubleLine Capital, STOT has a broad mandate to achieve its duration target with a few self-imposed portfolio constraints. The fund holds a minimum of 25% allocation to mortgage-backed securities, a maximum of 20% in high yield corporate bonds, up to 15% allocation to bonds denominated in foreign currencies, and a 20% cap to emerging markets. STOT's state benchmark is more tightly constrained: USD-only, investment-grade only. The managers consider security selection within sectors, relative sector performance, yield curve shape, and interest rate moves. Prior to Oct. 31, 2025, the fund did not use the State Street brand reference in the fund name.