There are phases when mid-cap stocks come under pressure and are the worst performers. These days we are witnessing one such phase. Despite that, in the last 10 years, they have provided the best returns.Mid-cap indices, too, have been the top performers in the past decade. If you do not own mid-caps, your returns even in the longest of bull runs would not be very high. One of the reasons why mid-caps are able to do well when an economy like