NEW YORK — The biggest returns this year have come from the smallest stocks.
Indexes that track small stocks are at record highs. Small- and mid-cap stocks have dominated their larger peers over much of the current bull market, which began in 2009.
Consider mutual funds that invest in high-growth stocks. Those that focus on small stocks are up about 21 percent so far in 2013, according to Morningstar. That beats the 15 percent return for large-cap growth stock funds over the same time.