Definition in one sentence: the win rate is the percentage of winning trades out of all executed trades. On its own, it is one of the most misleading indicators in trading.
What it measures
The calculation poses no difficulty: divide the number of winning trades by the total number of trades.
winning trades ÷ total tradesThe problem is not the calculation, it is the interpretation. The win rate tells you how often you were right. It says nothing about how much you win when you are right, nor how much you lose when you are wrong. Yet that is exactly where profitability is decided.
How to read it
A win rate is never read alone. It must always be crossed with the payoff ratio (the average gain / average loss). Two examples say it all:
- A win rate of 90% with tiny gains and rare huge losses can be a net loser.
- A win rate of 52 to 58% with gains clearly larger than losses can be highly profitable.
The synthesis of the two is called expectancy — and it, not the win rate, determines whether a strategy creates or destroys capital.
The classic mistake
It is the favourite selling point of signal sellers: showing a spectacular win rate to impress. But a '92% win rate' without the payoff ratio and without expectancy is, at best, incomplete information. Understanding why a high win rate is not enough is the best vaccine against promises that are too good. Our cornerstone 'win rate ≠ profitability' lays out the full mathematical demonstration (coming soon).
At Sextant
Sextant is a transparent quant platform: the win rate is owned as it is, without make-up. A strategy can show a modest win rate and stay healthy, because what matters is the whole set of metrics — payoff ratio, expectancy, maximum drawdown. The methodology explains how each is computed.
Frequently asked questions
Does a high win rate mean a strategy is profitable?
No. Profitability depends on expectancy, which combines the win rate with the size of gains and losses. A strategy with 90% winning trades but rare huge losses can be a net loser. The win rate must always be read with the payoff ratio.
What is a good win rate in trading?
There is no good win rate in absolute terms. A trend-following strategy can be very profitable with a 40% rate, if its gains are far larger than its losses. Conversely, a 70% rate can be a net loser. The relevant question is not the win rate, but the expectancy.
Why do signal sellers highlight the win rate?
Because it is the easiest number to make spectacular and the most misleading in isolation. A '92% win rate' without payoff ratio or expectancy is incomplete information, often used to impress rather than to inform.