Risk Management·Stop Losses, Take Profits & Risk-Reward
Risk-Reward Ratios
The Math That Makes Profitable Trading Possible
Most new traders obsess over their win rate. But win rate alone tells you nothing about profitability. A trader who wins 70% of the time can still lose money if their losses are much bigger than their wins. The key metric is the risk-reward ratio (RR) — and when combined with win rate, it tells you everything about a strategy's profitability.
Here is a sobering example: Trader A wins 80% of the time, but each win averages 10 pips and each loss averages 60 pips. Over 100 trades: 80 wins x 10 pips = +800 pips. 20 losses x 60 pips = -1,200 pips. Net result: -400 pips. An 80% win rate and still losing money. Meanwhile, Trader B wins only 35% of the time, but each win averages 90 pips and each loss averages 30 pips. Over 100 trades: 35 wins x 90 pips = +3,150 pips. 65 losses x 30 pips = -1,950 pips. Net result: +1,200 pips. Win rate is vanity. Risk-reward is sanity.
Risk-reward · why 1:2 changes everything
Definition
Risk-Reward Ratio (RR)
The ratio of potential profit to potential loss on a single trade. A 1:2 RR means you risk $100 to make $200. A 1:3 RR means you risk $100 to make $300. Higher is better, but higher RR often means lower win rate — there's always a tradeoff. The optimal balance depends on your strategy and trading style.
Definition
Expectancy
The average amount you expect to win (or lose) per trade over a large number of trades. Expectancy = (Win Rate x Average Win) - (Loss Rate x Average Loss). A positive expectancy means the strategy makes money over time. A negative expectancy means it loses money regardless of how good individual trades feel. Example: 40% win rate, average win $200, average loss $100. Expectancy = (0.40 x $200) - (0.60 x $100) = $80 - $60 = +$20 per trade.
Definition
Profit Factor
Total gross profits divided by total gross losses. A profit factor of 2.0 means you make $2 for every $1 you lose. Any value above 1.0 is profitable. Professional traders typically aim for a profit factor between 1.5 and 2.5. Below 1.0 means the strategy is a net loser.
Break-Even Win Rates at Different RR Ratios
The break-even win rate is the minimum win rate needed to avoid losing money at a given RR ratio. Understanding this table is critical for evaluating whether a strategy is viable. Memorize the key numbers.
| Risk-Reward Ratio | Break-Even Win Rate | Profitable at 50% Win Rate? | Profit per 100 Trades ($100 risk) |
|---|---|---|---|
| 1:0.5 | 66.7% | No (-$2,500) | 50 x $50 - 50 x $100 = -$2,500 |
| 1:1 | 50% | Break even | 50 x $100 - 50 x $100 = $0 |
| 1:1.5 | 40% | Yes (+$2,500) | 50 x $150 - 50 x $100 = +$2,500 |
| 1:2 | 33.3% | Yes (+$5,000) | 50 x $200 - 50 x $100 = +$5,000 |
| 1:3 | 25% | Yes (+$10,000) | 50 x $300 - 50 x $100 = +$10,000 |
| 1:4 | 20% | Yes (+$15,000) | 50 x $400 - 50 x $100 = +$15,000 |
| 1:5 | 16.7% | Yes (+$20,000) | 50 x $500 - 50 x $100 = +$20,000 |
A 40% win rate can be very profitable
If your average win is 2.5x your average loss, you only need to win 29% of trades to break even. A 40% win rate at 1:2.5 RR generates consistent profit. Don't chase a high win rate — chase a favourable RR. The best trend-following systems in history often have win rates below 40%, but their winners are multiples of their losers.
Richard Dennis, the legendary 'Turtle Trader,' taught a group of beginners to trade using trend-following rules. Their win rate was approximately 35-40%. Yet the program generated over $150 million in profits over five years. The secret was the risk-reward profile: losses were cut quickly (small R), but winning trades were held through massive trend moves (often 5-10R or more). One 10R winner erased ten 1R losers. This is the power of favorable risk-reward ratios combined with disciplined position sizing.
The minimum viable RR for your win rate
Before trading a strategy live, calculate its expected break-even RR using the formula: Minimum RR = (1 - Win Rate) / Win Rate. For a 50% win rate: (1 - 0.50) / 0.50 = 1.0 — you need at least 1:1 RR to break even. For a 40% win rate: (1 - 0.40) / 0.40 = 1.5 — you need at least 1:1.5 RR. For a 30% win rate: 0.70 / 0.30 = 2.33 — you need at least 1:2.33 RR. If your backtested RR is below the minimum for your win rate, the strategy is a net loser.
Calculating RR on a Real Trade
How to Calculate Risk-Reward Before Entry
- 1
Identify your entry price
The price at which you'll place the trade. Example: Buy EUR/USD at 1.0850.
- 2
Identify your stop loss
Where the trade is invalidated. Example: stop at 1.0800 = 50 pips of risk.
- 3
Identify your take profit
The realistic target based on resistance or measured move. Example: target 1.0950 = 100 pips of reward.
- 4
Calculate the ratio
Reward / Risk = 100 pips / 50 pips = 2. This is a 1:2 RR trade. Only take the trade if your strategy's average RR supports this.
- 5
Calculate expectancy
If your historical win rate on this setup is 45%: Expectancy = (0.45 x 100) - (0.55 x 50) = 45 - 27.5 = +17.5 pips per trade. Positive expectancy — take the trade.
Entry
1.0850
Stop
1.0800
Target
1.0950
Long EUR/USD after a bullish engulfing candle at a key support zone. Stop 50 pips below at 1.0800 (below swing low). Take profit at 1.0950 (prior resistance). RR = 1:2. At a 40% win rate over 100 trades risking $100 each: 40 wins x $200 - 60 losses x $100 = $8,000 - $6,000 = $2,000 net profit.
Entry
1.3650
Stop
1.3720
Target
1.3440
Short USD/CAD at resistance (1.3650) after bearish rejection wick on H4. Stop 70 pips above at 1.3720 (above the high of the rejection candle). Take profit 210 pips below at 1.3440 (previous demand zone). RR = 1:3. At a 30% win rate: 30 wins x $210 - 70 losses x $70 = $6,300 - $4,900 = +$1,400 net profit per 100 trades.
The Expectancy Formula in Practice
| Win Rate | Avg Win (R) | Avg Loss (R) | Expectancy per Trade | Result over 200 Trades (risking $100) |
|---|---|---|---|---|
| 30% | 3.0R | 1.0R | +0.20R | +$4,000 |
| 40% | 2.0R | 1.0R | +0.20R | +$4,000 |
| 50% | 1.5R | 1.0R | +0.25R | +$5,000 |
| 60% | 1.0R | 1.0R | +0.20R | +$4,000 |
| 70% | 0.8R | 1.0R | +0.26R | +$5,200 |
| 80% | 0.5R | 1.0R | +0.20R | +$4,000 |
| 40% | 1.0R | 1.0R | -0.20R | -$4,000 (losing strategy) |
Don't move your take profit down
Many traders see the trade go in their favour, get nervous, and close early at a 1:0.5 RR. This destroys the mathematical edge of the strategy. If you planned a 1:2 trade and close at 1:0.5, you now need a 67% win rate instead of 33% to break even. Set your take profit at a logical target and let the trade run. Partial profits at 1R with the remainder running to full TP is a valid compromise.
The partial take profit strategy
A popular professional approach: close 50% of the position at 1R profit (recovering your initial risk), then move the stop to breakeven on the remaining 50% and let it run to the full TP. This locks in a small profit, makes the remaining position 'risk-free,' and still allows you to capture large moves. Your effective RR is lower, but the psychological benefit is enormous.
Common RR Mistakes That Destroy Profitability
| Mistake | Impact | How to Fix |
|---|---|---|
| Closing winners early (fear) | Turns 1:2 trades into 1:0.5 — need 67% wins vs 33% | Set TP at entry and use alerts, not manual watching |
| Letting losers run (hope) | Turns 1R losses into 2-3R losses — devastates expectancy | Place hard stops immediately; never widen a stop |
| Chasing entries after missing setup | Worse entry = worse RR; 1:2 becomes 1:1.2 | If you missed the entry, wait for the next setup |
| Ignoring spread in RR calculation | A 2-pip spread on a 20-pip stop is 10% extra cost | Include spread in stop distance when calculating RR |
| Using unrealistic targets | 1:5 RR looks great but target never reached | Base targets on actual structure levels, not wishful thinking |
The most insidious RR mistake is subtle: gradually degrading your average RR over time without realizing it. This happens when you start closing trades a few pips before your target 'just to be safe,' or when you begin taking B-grade setups with slightly worse entry points. Track your actual average RR (not your planned RR) in your trading journal every month. If your actual average is consistently below your planned average, you have an execution problem that needs fixing.
With a 45% win rate, your minimum break-even RR is 1:1.22. At a 1:2 RR over 100 trades risking $100 each: 45 wins x $200 - 55 losses x $100 = $3500 net profit.
Knowledge check
A strategy has a 35% win rate and a 1:2 risk-reward ratio. Over 100 trades risking $100 each, what is the net profit or loss?
Knowledge check
Trader A has an 80% win rate with 1:0.2 RR. Trader B has a 35% win rate with 1:3 RR. Who is more profitable over 100 trades?