Risk-Reward Ratio
Definition
The risk-reward ratio compares the potential profit of a trade to the maximum loss if the stop is hit — a 3:1 risk-reward means you stand to make $3 for every $1 you risk, and maintaining a favorable ratio means you can be wrong more than half the time and still be profitable.
Example
“Entry at $25.00, stop at $24.50 ($0.50 risk), target at $26.50 ($1.50 potential profit). That's a 3:1 risk-reward ratio. I can be right only 35% of the time with that ratio and still make money over 100 trades.”
Detailed Explanation
Risk-reward ratio is the quantitative expression of a trade's potential. It doesn't predict whether the trade will work — no ratio does — but it tells you whether the trade is worth taking given your win rate. The math is elegant: if you consistently achieve 2:1 risk-reward (which means your average winner is twice your average loser), you only need a win rate above 33% to be profitable. At 3:1, you can break even winning just 25% of the time. This is the counterintuitive insight that separates professional traders from gamblers: you don't need to be right most of the time, you just need to ensure your wins are substantially larger than your losses on average.
The practical challenge is finding trades where the technical setup actually supports the required ratio. This means your profit target must be at a realistic, meaningful level — not pulled from thin air to hit a 3:1 number, but at actual resistance where sellers are likely to appear. And your stop must be at the actual technical invalidation point — not tightened artificially to manufacture a better-looking ratio while using a stop that gets triggered by normal volatility. A 5:1 ratio that requires a stop so tight you get stopped out 90% of the time isn't actually 5:1 in practice; it's a -0.4R expectancy system with false math.
The minimum acceptable ratio depends on your win rate. Most experienced day traders target 2:1 as an absolute floor, meaning they won't take a trade where the potential profit is less than twice the potential loss. Many require 3:1 or better. At these ratios, even a 40% win rate produces meaningful positive expectancy over time. Tracking your actual achieved R multiple (not what you targeted but what you got on your winners) is essential — many traders discover their real average winner is only 1.2R because they consistently take profits early, which means the 2:1 target they thought they were trading is actually 1.2:1 in their real equity curve.