- Long losing streaks are normal, even for profitable strategies.
- Drawdowns are harder to recover from than they look.
- Size for the streak you could plausibly hit, not the average.
Many traders abandon a sound strategy after a handful of losses in a row, because a streak feels like proof that something is broken. Usually it is not. Streaks are a normal feature of random outcomes, and knowing how common they are is a practical part of risk management.
How likely is a losing streak?
If each trade loses independently with probability q, the chance of n losses in a row is q to the power of n. For a strategy that wins half its trades, five straight losses has a probability of 3.1% for any given set of five trades. That sounds rare, but over a series of trades there are many chances for a streak to start.
A strategy with a 40% win rate, which can be profitable when winners are larger than losers, will often produce ten losses in a row over a year of trading.
What streaks cost depends on position size
A streak is survivable or fatal depending on how much you risk per trade. Here are ten consecutive losses at different risk levels.
Why recovery is harder than the loss
Losses and gains do not cancel symmetrically. A 50% drawdown needs a 100% gain to get back to even. The deeper the hole, the steeper the climb.
| Drawdown | Gain needed to recover |
|---|---|
| 10% | 11.1% |
| 20% | 25% |
| 30% | 42.9% |
| 50% | 100% |
| 70% | 233% |
What to do about it
Size for the streak
Pick a risk per trade that lets you absorb the longest streak you could plausibly hit without a damaging drawdown.
Decide in advance
Some traders reduce size or pause after a set drawdown. A rule written in calm conditions beats a decision made after five losses.
Avoid revenge trading
Increasing size to win back losses turns a normal streak into a deep one.
Also judge a strategy on enough trades. A small sample says very little about whether an approach works, so review your journal over dozens of trades, not a handful.
The takeaway
You cannot avoid losing streaks, but you can decide how much they cost. Fixing your risk per trade, sizing from your stop, and tracking results over time keeps a normal run of losses from becoming an account-ending one.
This article is for education only. It is not financial advice or a recommendation to buy or sell any asset. Trading involves a high risk of loss.