Investors have long embraced small-caps. That's because of higher growth prospects and diversification within portfolios that often lean into large-caps. But in recent years, domestic smaller stocks have left investors wanting more. For the three years ending November 11, the Russell 2000 and S&P SmallCap 600 indexes returned 42.1% and 31%, respectively. That badly trails U.S. large-caps. But that period wasn't an outright disaster for smaller stocks. In fact, impressive showings were delivered outside the ...