Seven equity mutual fund schemes have delivered more than 20% returns in 10 years, an ETMutualFund study showed. SBI Small Cap Fund delivered the highest return of 24.27% in 10 years, followed by Nippon India Small Cap Fund which offered 24.02% returns in the same period. Interestingly, both these schemes are also the biggest funds by size in the small cap segment. Because of small cap stocks’ ability to offer big returns in the long term, the toppers in our list are also small cap funds.