Vanguard Total Bond Market Index Fund Institutional Select Shares (VTBSX)

VTBSX is a mutual fund that tracks the performance of the entire U.S. investment-grade bond market. It is managed by Vanguard and is designed for institutional investors. This fund offers a diverse portfolio of high-quality bonds, providing investors with a low-cost and efficient way to gain exposure to the bond market. With a ticker symbol of VTBSX, this fund is a popular choice for those looking for a well-diversified and low-risk investment option.