Index funds are mutual funds that seek only to mirror the performance of an underlying stock market index — not to outperform it. Millions of investors hold them in their portfolios because they ...

What is an index? It’s hard to say these days. An index used to be a broad measure of market value. Today, it appears to mean any list of securities that are configured and managed in any way. This ...

Index futures are futures contracts where the underlying asset is a stock index. These financial derivatives allow investors to buy or sell the future value of a stock index at a predetermined price ...