How far from entry should a stop loss sit?

There is no universal percentage, and any figure quoted would be invented for your specific case. The distance comes from the chart and from the instrument's typical range, not from a rule of thumb. An instrument with wide daily ranges needs more room than a quiet one, otherwise the stop triggers on ordinary movement. In practice, work in this order: identify the level where your idea would be invalidated, add a small buffer beyond it, convert the distance into money, then derive the size. If the resulting position comes out very small, that is the correct answer to a trade with a wide stop, not a reason to pull the stop closer.

Can I move the stop while the trade is running?

In your favour yes, away from your position never. That asymmetry is the entire point. A trailed stop protects gains and reduces live exposure without altering the original decision. A stop moved away removes the limit you set for yourself and leaves the loss open ended. Keep management and review separate: for the open position the current stop governs, but for calculating your metrics later it remains the original one. Using the trailed value produces artificially good results that say nothing about the quality of your entries.

What if I keep getting stopped out narrowly?

Measure before assuming. On trades that ran your way after stopping you out, record how far below your stop price actually went. If very small breaches cluster, either your buffer is too thin or your stop sits at too obvious a level, such as exactly on a round number or the prior day low. Two corrections follow: place the stop a little beyond the level, or size the distance against the instrument's typical range. Both produce wider stops and therefore smaller positions at the same risk. The third option, dropping the stop altogether, is not a correction.

Do stop losses make sense for crypto?

Yes, though two conditions differ. First, volatility is considerably higher, which at the same risk share per position automatically produces smaller sizes. A stop distance that looks generous on a stock can be tight on a crypto asset. Second, liquidity outside the largest assets is often thin, so stops fill worse than planned. In practice that means restricting yourself to liquid pairs and using a smaller risk share per position than in equity markets. Since these markets run continuously, the classic overnight gap risk around news is reduced, but sharp moves can arrive at any hour of the day or night instead.

How do I know my stop is too wide?

From the maximum adverse excursion of your winning trades. For every trade that closed in profit, record how far price moved against you along the way. If those values consistently sit well inside your stop distance, meaning your winners never came close to the stop, you are risking more on every trade than the idea actually requires. A tighter stop would then lower risk at a nearly unchanged win rate and improve your R multiples. Sample size matters: this analysis needs thirty to fifty trades, because individual outliers distort it otherwise. And it assumes you record the path, not just entry and exit prices.

How to Set a Stop Loss: 5 Common Mistakes

A stop loss belongs at the level where your trade idea would be proven wrong, not at the level matching the risk you would like to take. That single inversion explains most stop loss mistakes: the chart determines the stop distance, and position size follows from it. Do it the other way round and you place the stop wherever the arithmetic works, then get stopped out by ordinary noise.

What is a stop loss actually for?

It has two jobs, and they get conflated constantly.

The first is capping the loss. The stop defines the most a single failure can cost you, which makes your risk plannable.

The second is invalidating your assumption. A stop marks the point where the reason for the trade no longer holds. If you entered on a breakout and price falls back below the breakout edge, the breakout failed, regardless of how much money sits in between.

The second job is the more important one, because it determines the location. The first only determines the size.

Mistake 1: Letting desired risk place the stop

The most common error of all. You want to risk 100, work backwards to how far the stop can sit given your intended size, and put it there.

The result is a stop at an arbitrary point with no meaning to the market. It triggers not because your idea was wrong but because price moved normally.

The correct order is: level from the chart first, then distance in money, then size. If the resulting position looks small, that is not a reason to move the stop, it is the correct answer to a trade with a wide stop. How size follows from it is covered in position sizing.

Mistake 2: Setting it too tight

A tight stop feels like risk control and often achieves the opposite. The tighter the stop, the higher the chance random movement triggers it, and the more often you get thrown out of trades that then run in your direction.

The consequence is a falling win rate on an unchanged idea. Many traders respond by assuming the strategy has stopped working, when in fact only the stop distance no longer matches the instrument's typical range.

A tight stop is right precisely when your entry sits close to a structural level. It is wrong when it is tight only so the position can be large.

Mistake 3: Predictable levels

Round numbers, exact prior day highs and obvious swing lows are where a great many stops cluster. Price reaches those places more often than average, because that is where liquidity sits.

No conspiracy follows from that, just a simple consequence: place the stop a little beyond the relevant level rather than exactly on it. The buffer has to stay small enough that the idea is still invalidated, but large enough that a brief spike does not collect it.

Mistake 4: Moving it after the fact

The most expensive mistake, because it is unbounded. A stop moved further away because price is about to reach it is no longer a stop, it is a statement of intent.

Two points. First, trailing in your favour is fine and sensible; moving it away never is. The rule is deliberately asymmetric. Second, for review purposes the original stop still counts, otherwise your metrics become meaningless. Why that is so is covered in R multiples in trading.

If you notice yourself moving stops regularly, the position is too large. A loss that makes you negotiate exceeds your actual risk tolerance, whatever the arithmetic says.

Mistake 5: No plan around scheduled events

Earnings and similar events have a fixed date with an unknown outcome. If an instrument opens well below your stop afterwards, it executes at the next tradable price, not at your level.

The mistake is not holding through such events. The mistake is doing so without a decision. Three approaches are defensible: exit beforehand, reduce the position, or deliberately stay in while sizing all positions so that a gap never does disproportionate damage. What is not defensible is deciding case by case on feel.

Mistake 6: Deciding the stop after entering

This one comes last because it enables all the others. Setting the stop once the position is already open means you are no longer deciding about a trade idea but about a running gain or loss.

The difference is larger than it sounds. Before entry the question is neutral: where would my assumption be proven wrong? After entry it quietly becomes a different question: where does this not hurt yet? The second question almost always produces a tighter stop, because a visible paper loss shifts your perception.

There is a review problem on top. A stop recorded afterwards documents your memory of the decision rather than the decision, and memory adjusts to the outcome. That makes it impossible to separate a weak result caused by the strategy from one caused by execution.

The countermeasure is not willpower but sequence: stop and size are written down before the order is sent. If there is no time for that, there is no time for the trade either.

Which methods work in practice?

Three approaches that combine well:

Structure based. The stop sits below the last meaningful swing low, below the breakout edge, or below a rising moving average. Upside: it means something. Downside: the distance varies from trade to trade.
Volatility based. The distance follows the instrument's typical range, for instance as a multiple of an average daily range. Upside: it adapts automatically to calm and violent phases. Downside: the level itself has no structural justification.
Time based. If a trade has not moved as expected within a predefined period, it gets closed. Not a substitute for a price stop, but a sensible addition, because committed capital has a cost too.

In practice the combination of one and two often works best: structure supplies the level, volatility decides how much buffer you leave behind it.

How do you check in your journal whether your stops fit?

Three reviews answer the question without guesswork.

The share of trades beyond minus 1R. It should be small. If it rises, identify the cause: a gap, poor execution, or a stop you did not honour. The third is an execution problem and needs a different answer than the first two.

Maximum adverse excursion on winning trades. Record how far a trade moved against you before it turned. If your winners routinely came close to the stop, your buffer is thin. If they never came near it, it is probably too wide and you are risking more than necessary.

The distribution of stop distances. If they look similar across all trades even though you trade different instruments, that suggests the distance comes from your desired risk rather than from the chart.

All three require that the planned stop is documented before entry. A structured trading journal supplies exactly those fields.

What about mental stops?

A mental stop is a level you remember rather than place as an order. It has one legitimate use case, namely very illiquid instruments where a visible order fills poorly.

For everything else: a mental stop is unavailable at precisely the moment it is needed. It demands a decision under pressure, which is the exact situation the stop exists for. And anyone at work who cannot watch the screen has no choice anyway: the exit has to be resting in the market.

Conclusion

The stop belongs where your idea is invalidated, and position size follows from that. Stops set too tight lower your win rate without improving the idea, predictable levels get touched more often than average, and a stop moved away makes every review worthless. Check the share of trades beyond minus 1R and the maximum adverse excursion of your winners. Those two numbers tell you more about your stop quality than any external rule.

Disclaimer: this article is for informational purposes only and does not constitute investment advice. Trading securities and crypto assets carries the risk of loss, up to and including total loss of capital.

Setting Stop Losses Correctly: Common Mistakes to Avoid