Stocks with smaller market capitalizations tend to be riskier than those with larger market caps, but carefully selected ones can have enormous growth potential.Small-cap stocks are those with market capitalizations ranging from $300 million to $2 billion. These stocks, as a group, should be viewed as higher-risk/potentially high-reward investments.Some of them will likely turn out to be huge long-term winners. After all, many great-performing large-cap stocks started as small caps. Nvidia stock was a small ...