M2

PrepNuggets

The measure is adjusted against the market portfolio.  For example, a portfolio has a return lower than the market returns, but if we project the return based on its Sharpe ratio, the portfolio is actually outperforming the market.  The M2 is the excess return over the market on a risk adjusted basis.  The excess return of the portfolio is the slope of the line, which is the Sharpe ratio times the market standard deviation.  The M2 is calculated by subtracting the return of the market portfolio above the risk-free rate.  

Compare: Sharpe ratio, Treynor ratio, Jensen’s Alpha

Synonyms:
M-squared