Keep seeing this metric mentioned when people discuss trading performance but never really understood what it means.
Is it just another fancy way to measure profits or does it actually show something useful about risk management?
Sharpe ratio evaluates return per unit of risk. To calculate, subtract the risk-free rate from your return and divide by standard deviation. A ratio above 1.0 is good and above 2.0 is great. It favors consistent returns over big swings. For example, if two traders earn 20% a year, the one with stable returns comes out ahead. Use it to compare strategies rather than boast about profits.
I tracked this obsessively when testing different EA combos a few years ago.
It shows whether you’re actually skilled or just lucky with risky bets. One strategy hit 40% annual returns but had awful Sharpe - it’d tank for weeks then recover with a few huge trades.
Another system made 25% with steady weekly gains. Way better Sharpe and much more reliable long-term.
Most prop firms want Sharpe above 1.5. Below 1.0 means you’re taking too much risk for what you’re making.
The Sharpe Ratio measures return relative to the risk taken. It helps determine if profits stem from solid trading skill or mere chance. A trader with consistent gains is preferable over one with erratic performance, even if their profits are similar. It’s especially useful for comparing strategies across the same period.
It shows if your profits are worth the risk you took while trading.
Higher Sharpe ratio shows better risk adjusted returns.