Small-cap stock investing is an interesting phenomenon, especially from a risk-return perspective. Many are under the illusion that small-cap stocks are risky by default. Although that might be true in some instances, numerous small-cap stocks are secured by highly profitable companies that dominate niche industries. Moreover, small-cap stocks present diversification benefits, adding risk-adjusted return advantages to traditional investment portfolios.While considering the above, I screened for three best-i ...