If you look at the last month, both large- and mid-cap stocks have done well. But look at market performance over the past eight months: It is undeniable that there have been phases where large-caps have underperformed while mid-caps have outperformed – and vice-versa. So, it would probably be better to have a combination of large- and mid-cap stocks in your long-term investing as well as your trading portfolio. Because, whether we like it or not, market volatility is likely to remain high even though the bias of that volatility is turning bullish.