Q: Does investing in a "total stock market index fund" give you diversified exposure to large-, medium-, and small-sized companies? Or do I need to invest in separate mutual funds for my large- and small-company...

You don't need pricey money managers to help you buy low and sell high.

The social media stock is quickly maturing before our eyes. And that's not music to investors' ears.

Just as the U.S. World Cup team's 1-0 loss to Germany turned out to be a win, Nike tying Adidas in soccer sales represents a big victory.

Thanks to the Federal Reserve's attempts to be more "transparent," it must now balance the battle against inflation with its fight for jobs—all out in public. Maybe it's time to run silent.

Barnes & Noble plans to split off its Nook tablet unit so investors will focus on its much-healthier book-selling business. Go figure.