Where to Put a Stop-Loss: 4 Methods with Worked Examples
A stop-loss does not go where you "would not mind losing"; it goes where your trade idea stops working. We cover four ways to find that spot, compare them on a single trade and calculate the position size.
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The main rule
What a stop-loss and take-profit are is explained in take-profit and stop-loss. This article is about placement. A stop answers the question: "At what price do I admit I was wrong?" First you find that spot on the chart, and only then do you work out how much to buy so the risk is 1–2% of your account. Not the other way around.
Four methods
- Beyond a level. Buying at support — the stop goes below the support zone with a buffer. If price drops below the zone, the level has failed. How to find levels: support and resistance levels.
- Beyond a swing point. The stop goes beyond the last local low (for a long) or high (for a short). If the low breaks, the trend structure is broken.
- By volatility. The stop sits 1–2 ATR away from the entry. ATR shows the average price move per candle, so the stop does not end up inside normal "noise".
- By time. If price has not moved your way within a set period (for example, 3 days for a swing trade or 2 hours intraday), you close the trade. This is an addition to a price stop, not a replacement.
Example: one trade, three stop options
Account size: 1,000 USDT, risk 1%, or 10 USDT. Buy at 100.00 from a support zone of 97.50–98.00. The last low is 96.90. ATR(14) on the daily chart is 1.50.
| Method | Stop | Distance | Position at 10 USDT risk |
|---|---|---|---|
| Fixed 2% | 98.00 | 2.00 (2%) | 5 units = 500 USDT |
| Beyond the support zone | 97.20 | 2.80 (2.8%) | ≈3.6 units ≈ 357 USDT |
| Beyond the low | 96.70 | 3.30 (3.3%) | ≈3 units ≈ 303 USDT |
| 2 ATR | 97.00 | 3.00 (3%) | ≈3.3 units ≈ 333 USDT |
The key takeaway: the "2%" stop sits right at the top edge of support, where price can simply wobble. The other three options sit beyond the zone, and their distances are close. The money at risk is the same in every row — 10 USDT; only the size changes. You can recalculate your own trade in the position size calculator.
Stop-market or stop-limit
A stop-market order turns into a market order when price touches it and almost always gets filled, but with slippage. A stop-limit order places a limit order and may not get filled during a sharp move. For protecting against losses, a stop-market is the more reliable choice for a beginner.
How to manage the stop after entry
- Never move it further away. A stop only moves in the direction that reduces risk.
- Breakeven — not right away. Moving the stop to your entry price makes sense once price has travelled at least the distance to the stop (1R). Otherwise a normal pullback closes the trade at zero.
- Trailing. In a trend you can trail the stop behind new lows — see trailing stop for details.
Common mistakes
- A stop right next to a level or a round number. Everyone's stops sit there, and price often "collects" them with a quick spike — see liquidity hunting.
- A stop "by money": "I will put it 20 dollars lower, I do not want to lose more." The stop location comes from the chart; the money at risk is controlled by position size.
- A mental stop. "I will close it manually if needed" does not work in a sharp move.
- A stop that is too wide without reducing the position. Your risk quietly grows to 5–10% of the account.
What you are risking
A stop-loss limits your loss, but it does not make a trade safe. In a gap or a sharp move it will fill worse than your set price, and the loss will be bigger than planned. A run of stop-outs is a normal part of trading, which is why risk per trade is kept at 1–2% of the account, no more. Without a stop, one bad entry can wipe out months of work.
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- Put the stop where the idea stops working — beyond a level, a swing point, or 1–2 ATR away.
- Control money at risk with position size, not by moving the stop.
- A stop-market is more reliable than a stop-limit for protecting against losses.
- A stop only moves in the direction that reduces risk.
FAQ
Can I set my stop-loss as a percentage, like always 2%?
You can, but it is the worst method. The market does not care what percentage you are willing to lose: the stop should be where your idea stops working — beyond a level or a swing point. The percentage at risk is controlled by position size.
Why does my stop keep getting hit right before price goes my way?
Most often the stop is right next to a level or a round number — exactly where most people put theirs. Place it beyond the zone with a buffer, for example 0.5–1 ATR, and reduce your position so the money at risk stays the same.
Which is better: stop-market or stop-limit?
For protecting against losses, a stop-market is more reliable: it will fill no matter what, even if with slippage. A stop-limit may not fill at all during a sharp move, leaving the position open.
Can I move my stop-loss?
Only in the direction that reduces risk: to breakeven, or behind price as a trailing stop. Moving the stop further away as price approaches it is a no — that is the main way a small loss turns into a big one.
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Not investment advice. Trading involves risk — always use a stop-loss.