How many losing trades in a row is normal?

Five losing trades in a row feels like proof that something is broken. Usually it isn't. Losing streaks are built into every strategy, and how long they get depends mostly on two things: your win rate and how many trades you take. Here are the actual numbers, so you can tell a normal streak from a real problem.

The short answer

Over 100 trades, the longest losing streak you should expect is about:

• 3 to 5 losses in a row with a 70% win rate
• 4 to 6 with a 60% win rate
• 6 to 8 with a 50% win rate
• 7 to 11 with a 40% win rate
• 10 to 15 with a 30% win rate

The first number is the typical longest streak (half of all 100-trade runs are longer, half shorter). The second is a bad but realistic case: about 1 in 10 runs will have a streak at least that long. Many profitable strategies have win rates of 35% to 50%, because their winners are bigger than their losers, so streaks of 8 or more are part of normal trading for them.

The odds, by win rate

These are exact probabilities of seeing at least one streak of that length somewhere in 100 trades, assuming each trade is independent of the last:

• 70% win rate: 5 in a row 15%, 8 in a row under 1%.
• 60% win rate: 5 in a row 46%, 8 in a row 4%, 10 in a row 1%.
• 50% win rate: 5 in a row 81%, 8 in a row 17%, 10 in a row 4%.
• 40% win rate: 5 in a row 98%, 8 in a row 49%, 10 in a row 20%.
• 30% win rate: 5 in a row almost certain, 8 in a row 86%, 10 in a row 58%.

A trader with a 40% win rate has roughly even odds of hitting eight losses in a row over 100 trades. That isn't bad luck or a broken strategy. It's what a 40% win rate looks like.

More trades means longer streaks

The longer you trade, the longer your worst streak gets, even if nothing about your strategy changes. With a 50% win rate:

• Over 50 trades, the typical longest streak is 5, and 1 in 10 runs reaches 7.
• Over 100 trades, the typical longest is 6, and 1 in 10 reaches 8.
• Over 200 trades, the typical longest is 7, and 1 in 10 reaches 9.

So the longer you trade, the more likely you are to meet a streak longer than any you've had before. Plan for it before it happens, not during it.

What's an acceptable losing streak?

There's no single number. An acceptable streak is one your strategy's numbers say is normal, and one your position size lets you survive. Two checks:

1. Is it within range? Compare your current streak with the table above for your win rate. If you win 45% of trades and you've lost seven in a row, that's within normal range. If you win 70% and you've lost eight in a row, something has probably changed.
2. Can you afford it? Work out what your 1-in-10 worst streak would cost at your current risk per trade.

What a streak costs

Risking a fixed percentage of your balance per trade, a streak costs about:

• 5 losses: 4.9% at 1% risk, 9.6% at 2% risk, 22.6% at 5% risk.
• 10 losses: 9.6% at 1% risk, 18.3% at 2% risk, 40.1% at 5% risk.
• 15 losses: 14.0% at 1% risk, 26.1% at 2% risk, 53.7% at 5% risk.
• 20 losses: 18.2% at 1% risk, 33.2% at 2% risk, 64.2% at 5% risk.

At 1% risk, even a long streak is a setback you can recover from. At 5%, the same streak can take half the account, and you'd need to double what's left to get back. That's why most professionals keep risk per trade small. Our guide on how much to risk per trade explains the 1–2% guideline, and the position size calculator turns it into a lot size for any stop loss.

Find your own numbers

The table assumes trades are independent, which is close enough for most strategies. To get numbers for yours:

1. Take your real win rate from at least 50 to 100 trades, from your trading journal or an honest backtest.
2. Look up your win rate above, or the nearest one.
3. Note the 1-in-10 worst streak and work out what it would cost at your risk per trade.
4. Write that number in your trading plan as the drawdown you expect. Going past it is your signal to stop and review.

Be careful with win rates from short samples. Ten winning trades out of fifteen doesn't mean you have a 67% win rate. Backtests that look too good often have hidden problems; see how to backtest a trading idea.

When a streak is a warning sign

A streak inside your normal range is just variance. These are signs that something else is going on:

• The streak is longer than your 1-in-10 worst case.
• Your losses are bigger than planned, because stops were moved or skipped.
• You're taking trades that don't match your rules.
• The market has changed character, for example a quiet range turning into a strong trend.

If it's the second or third, the problem is discipline, not the strategy. Our article on revenge trading and overtrading covers how to stop a streak turning into something worse, and drawdowns and losing streaks covers the rules that keep a drawdown small.

Keep reading: drawdowns and losing streaks, risk-reward ratio vs win rate and how much to risk per trade.

Risk note: trading forex carries a high level of risk and may not be suitable for everyone. This article is for education only and is not financial advice.