The U.S. stock market has become so concentrated that even broad index funds are no longer well diversified, our columnist says.

This fund is a perfect example of buying the haystack instead of seeking the needle.

Learn how index funds invest in market indexes like the S&P 500 for broad diversification and market performance replication.

"Index funds can help investors achieve long-term success through their low costs, broad diversification, low turnover and ...

The SPDR Gold Shares ETF (NYSEMKT: GLD) has increased 25% year to date, putting it ahead of Palantir Technologies (down 12%) ...

S&P 500 index funds are incredibly popular with investors, and for good reason.

Index funds can be concentrated in a small number of stocks because of how they are weighted. There are simple ways to lower that risk. Index funds are wonderful tools for investors because they offer ...

Most of the largest active and index stock funds that outperformed their peers had greater exposure to tech. The best-performing large active name was the American Funds Fundamental Investors Fund.

To invest in index funds tax-efficiently, investors should consider doing so via an individual savings account (ISA). If ...

U.S. colleges and universities would, collectively, be $468 billion richer today if they had fired their investment managers 20 years ago and instead invested their endowments in low-cost index funds.

U.S. economic activity defied expectations for a slowdown despite clear signs of labor market deceleration. U.S. job growth slowed to levels rarely observed outside of recessionary periods. Moderation ...