The Fidelity International Index Fund (FZILX) is a mutual fund that seeks to track the performance of international stock markets. It invests in a diverse range of companies outside of the United States, providing investors with exposure to global markets. This fund is managed by Fidelity Investments, a reputable financial services company known for its expertise in index funds. With a low expense ratio and a focus on long-term growth, FZILX is a suitable option for investors looking to diversify their portfolio and potentially benefit from international market growth.