The Vanguard Total International Stock Index Fund (VGTSX) is a mutual fund that invests in a diverse portfolio of international stocks. It aims to provide investors with broad exposure to non-U.S. companies and their potential for growth. The fund is managed by Vanguard, a reputable investment management company known for its low-cost index funds. With a ticker symbol of VGTSX, this mutual fund offers investors a convenient and efficient way to diversify their portfolio and potentially benefit from global market opportunities.