Metrics
Sharpe Ratio
The Sharpe ratio is a measure of an investment's performance relative to its risk. It helps investors compare different investments based on their risk-adjusted returns. A higher Sharpe ratio generally indicates a better risk-adjusted return.
Alpha
R - Squared
More Metrics
While the Sharpe ratio is a widely used metric, it's not the only tool in the investor's arsenal. Let's explore some alternatives:
Risk-Adjusted Return Metrics:
Sortino Ratio: Similar to the Sharpe ratio, but focuses on downside risk (standard deviation of negative returns) instead of total volatility. This is useful for investors who are more concerned with downside protection.
Treynor Ratio: Measures the excess return generated per unit of systematic risk (beta). It's useful for comparing investments that have different levels of market risk.
Information Ratio: Measures the excess return generated by a portfolio manager relative to a benchmark, adjusted for tracking error. This is often used to evaluate active investment strategies.
Return Metrics:
Alpha: Measures the excess return generated by a portfolio compared to its benchmark, after adjusting for market risk (beta). Positive alpha indicates the manager's skill in generating returns.
Geometric Mean Return: Considers the compounding effect of returns, which can be more accurate than the arithmetic mean for long-term performance evaluation.
Risk Metrics:
Maximum Drawdown: Measures the largest peak-to-trough decline in the value of an investment. This helps assess the potential downside risk.
Value at Risk (VaR): Estimates the potential loss in an investment over a specific period with a given probability. This is useful for risk management.
Beta: Measures the volatility of an investment relative to the overall market. A beta of 1 indicates the investment moves in line with the market, while a beta greater than 1 suggests higher volatility.
Other Considerations:
Correlation: Measures the relationship between two investments. Diversification benefits can be achieved by combining investments with low correlations.
R-squared: Indicates the percentage of a fund's movement that can be explained by the movement of its benchmark.
Jensen's Alpha: Similar to alpha, but uses a more complex calculation to measure excess returns.