Calstrs is a pension fund that provides retirement, disability, and survivor benefits for California's public school educators and their families. The fund was established in 1913 and has since grown to become one of the largest pension funds in the United States. Calstrs manages a diversified portfolio of investments, including stocks, bonds, and real estate. The fund is committed to providing secure and sustainable retirement benefits for its members, and has a strong track record of investment performance.