Why a 40% Win Rate Can Beat a 90% One
A win rate is uninterpretable on its own. At a fixed 2:1 reward-to-risk, break-even sits at a 33% hit rate, so a sustained 40% is a real edge. Very high advertised win rates usually conceal a poor reward-to-risk, where one loss erases dozens of wins.
Almost every signal service leads with its win rate, because it is the number people ask for. It is also, on its own, close to meaningless. A service winning 80% of the time can lose money steadily, and one winning 38% of the time can grow an account. What decides the outcome is how much you make when you are right versus how much you lose when you are wrong.
The arithmetic
Expectancy per trade is the only number that matters. It is the average win multiplied by the win rate, minus the average loss multiplied by the loss rate:
Expectancy = (Win% × Average win) − (Loss% × Average loss)
Every signal we publish is set at a fixed 2:1 reward-to-risk — the target is always twice as far from entry as the stop. That constant is what makes the win rate readable. At 2:1, here is what different hit rates actually produce per signal, risking one unit each time:
| Win rate | Wins pay | Losses cost | Expectancy |
|---|---|---|---|
| 30% | +2.0 | −1.0 | −0.10 |
| 33.3% | +2.0 | −1.0 | 0.00 (break-even) |
| 40% | +2.0 | −1.0 | +0.20 |
| 50% | +2.0 | −1.0 | +0.50 |
| 60% | +2.0 | −1.0 | +0.80 |
The break-even point at 2:1 is a third. Anything above roughly 33% is profitable before costs. This is why a 40% win rate is a genuinely good result at this reward-to-risk — and why a service quoting 90% without telling you its reward-to-risk has told you nothing at all.
Why very high win rates are a warning sign
You can manufacture almost any win rate by moving the target closer and the stop further away. Set a target 0.2% from entry and a stop 5% away and you will win the overwhelming majority of trades — until the one loss erases forty wins. High advertised win rates usually mean a poor reward-to-risk hiding behind them.
- Ask for the reward-to-risk alongside the win rate. Neither number means anything alone.
- Ask for the average loser, not just the average winner. That is where a bad strategy hides.
- Ask whether losses are published at all. A track record showing only winners is marketing, not evidence.
How we report it
Our published track record shows the win rate, the average winner, the average loser and the resulting reward-to-risk together, because the first number cannot be interpreted without the other three. Losses and expired signals are included in the denominator.
We also refuse to publish a win rate until at least 20 signals have resolved. Below that a single outcome swings the figure by five percentage points or more, which makes it a decoration rather than a measurement. Until then we show the raw counts instead. The full scoring rules are in the methodology.
The short version: a win rate is only interpretable next to a reward-to-risk. At the fixed 2:1 we use, break-even is a 33% hit rate, so anything sustained above 40% is a real edge — and a service advertising 90% without publishing its average loss is telling you less than it appears to.
Frequently asked questions
- Is a 40% win rate good for trading signals?
- At a fixed 2:1 reward-to-risk it is genuinely good. Break-even at 2:1 sits at a 33% hit rate, because each win pays twice what each loss costs. A sustained 40% therefore produces a positive expectancy of about +0.20 per unit risked, before costs.
- What is expectancy in trading?
- Expectancy is the average result per trade: (win rate × average win) − (loss rate × average loss). It is the only number that determines whether a strategy makes money over time, which is why a win rate quoted without an average loss tells you almost nothing.
- Why is a 90% win rate a warning sign?
- A very high advertised win rate usually conceals a poor reward-to-risk — a wide stop and a tiny target, so that a single loss erases dozens of wins. A service quoting 90% without publishing its average loss has told you nothing about whether it is profitable.
- What reward-to-risk do SmartInvest AI signals use?
- A fixed 2:1 — the target is always twice as far from the entry as the stop. Holding that ratio constant is what makes the published win rate interpretable rather than a marketing number.
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Educational content, not financial advice. Trading carries risk, including loss of capital.