If you have invested in mutual funds, you have surely heard of Sharpe and Treynor ratios. In fact, if you open the fund factsheet of any equity mutual fund, you will find the Sharpe ratio disclosed of the fund under the fund analytics section. Some funds even disclose the Treynor ratio for the particular equity fund. What exactly are these Sharpe Ratios and Treynor ratios and how can investors interpret them?