Risk-adjusted performance evaluates investment returns in the context of the risk taken to achieve them — a fund with lower returns but far lower risk may outperform a higher-returning, higher-risk fund on risk-adjusted terms.
Raw return numbers don't tell the full story. A fund delivering 18% CAGR with a maximum drawdown of 45% is very different from one delivering 16% CAGR with a maximum drawdown of 20%. Risk-adjusted performance metrics — Sharpe Ratio, Sortino Ratio, Treynor Ratio, Information Ratio — all attempt to answer: 'How much return did this fund generate per unit of risk it exposed investors to?' These ratios are the gold standard for comparing funds across different risk profiles.
Two fund managers: Manager A earned 18% return but you lost sleep during a 40% crash in their fund. Manager B earned 14% but the worst year was -10%. On a raw basis, A wins. But on a risk-adjusted basis, B may win — more return per unit of anxiety experienced. Risk-adjusted performance is about quality of return, not just quantity.
Primary ratios: Sharpe Ratio (return per unit of total volatility), Sortino Ratio (return per unit of downside risk), Treynor Ratio (return per unit of market risk), Information Ratio (active return per unit of active risk).
Higher values are better for all ratios.
Compare ratios within the same asset class and category — don't compare a debt fund's Sharpe to an equity fund's.
Multi-period comparison matters — a good ratio only in recent bull market isn't meaningful.