Sharpe Ratio Calculator

What the Sharpe Ratio Can Tell You

When comparing funds or portfolios, investors should consider both absolute returns and risks. While one portfolio or fund may have higher returns, it's only a good investment if those higher returns don't come with additional risk.

What's considered a good Sharpe Ratio depends on the investor's risk tolerance and objectives. Generally, any value above 1.0 is acceptable, above 2.0 is very good, and 3.0 or higher is excellent. However, real-world data shows most portfolios don't reach these textbook figures.

Based on thousands of portfolios and securities tracked on PortfoliosLab, here's how Sharpe Ratios typically distribute:

Portfolios

• Median: 1.29
• 75th percentile: 1.70
• 99th percentile: 4.27

A typical portfolio has a Sharpe Ratio around 1.29, suggesting moderate excess returns relative to risk. Portfolios in the top 25% achieve a Sharpe Ratio above 1.70, often indicating better diversification or more consistent returns. Only 1% of portfolios reach a Sharpe Ratio higher than 4.27, usually reflecting exceptional risk-adjusted performance.

Stocks

• Median: 0.28
• 75th percentile: 1.10
• 99th percentile: 4.84

Individual stocks typically have a lower median Sharpe Ratio (often even negative) because of higher price swings and company-specific risks. Still, the top-performing stocks can deliver high Sharpe Ratios above 4.84, though sustaining that level long-term is challenging.

ETFs

• Median: 0.98
• 75th percentile: 1.45
• 99th percentile: 5.87

ETFs tend to have slightly higher top-end Sharpe Ratios than individual stocks, thanks to built-in diversification and professional management. The 75th percentile near 1.45 shows that many ETFs provide solid risk-adjusted returns.

These benchmarks help investors see where their portfolio stands. If your Sharpe Ratio is above the median, you're already ahead of the curve. Surpassing the 75th percentile means you're outperforming most portfolios on a risk-adjusted basis.

How to Improve Your Sharpe Ratio

Improving your Sharpe Ratio means either increasing returns without adding risk or reducing volatility while maintaining returns. Here are some strategies:

• Diversify across asset classes: Combining assets with low correlation (stocks, bonds, commodities, international exposure) can lower volatility.
• Limit high-volatility exposure: Large concentrated bets increase risk disproportionately. A balanced allocation supports more stable returns.
• Add downside protection: Defensive assets or hedges help smooth performance during downturns.
• Rebalance periodically: Rebalancing prevents risk drift and keeps your portfolio aligned with your desired risk-return profile.
• Reduce fees and taxes: Lower costs and avoiding unnecessary turnover preserves more return.
• Use portfolio optimization tools: Tools like the Portfolio Optimizer help you find the best allocation for your goals, maximizing your Sharpe Ratio based on historical data.

Sharpe Ratio Limitations

A main limitation of the Sharpe Ratio is its reliance on volatility as a measure of risk. It assumes risk equals volatility, meaning high volatility implies higher risk. But that's not always true - some investments may have high volatility without being riskier.

Significant positive returns also add to overall volatility, which can lower the Sharpe Ratio. It penalizes both upside and downside deviations equally, though investors usually prefer positive surprises. So, an investment with a high Sharpe Ratio but low total return may be less appealing than one with a slightly lower Sharpe but higher total return. That's where other risk-adjusted metrics like the Sortino or Omega ratios can help.

Alternatives

While the Sharpe Ratio is useful for evaluating risk-adjusted performance, other indicators can help you make better investment decisions. Here are a few alternatives:

Sortino Ratio: Similar to the Sharpe but focuses on downside risk only, measuring excess return relative to downside volatility.

Treynor Ratio: Evaluates returns relative to systematic risk, dividing excess return by beta.

Omega Ratio: Assesses risk-adjusted performance by considering the size and frequency of negative returns, which can be more relevant than overall volatility.

These indicators add valuable context. Combining them with other tools and analysis helps you make well-informed decisions.