The Vanguard Emerging Markets Bond Fund Investor Shares (VEMBX) is a mutual fund that primarily invests in fixed-income securities issued by emerging market countries. This fund aims to provide investors with exposure to the potential growth and diversification benefits of emerging market bonds while also managing risk through a diversified portfolio. VEMBX is managed by Vanguard, a reputable investment management company known for its low-cost index funds. This fund may be suitable for investors looking to add international fixed-income exposure to their portfolio.