The Columbia Short Term Bond Fund Class I3 (CSBYX) is a mutual fund that primarily invests in a diversified portfolio of short-term fixed income securities. These may include government and corporate bonds, as well as other debt instruments with maturities of less than five years. This fund aims to provide investors with a stable source of income and preserve capital by focusing on lower-risk, shorter-term investments. As a Class I3 fund, it may have a higher minimum investment requirement and lower fees compared to other classes of the same fund. Overall, the CSBYX offers a conservative investment option for those seeking a balance of income and capital preservation in their portfolio.