Stop-Loss Placement: Where It Goes and Why Trading Without One Ends the Same Way

A stop-loss closes a position at a set price. Its job is not to avoid losses but to make the loss a known quantity in advance.

Three ways to choose the level

By structure. Beyond the last significant low for a long, beyond the high for a short. The logic: if price gets there, your idea has stopped working.

By volatility. One to 1.5 ATR from entry. This adapts to current market range — tighter in quiet conditions, wider in violent ones.

By time. Close the position if it has not moved your way within N candles. Effective for news and session-based strategies.

The money approach — "I'll put the stop at $50" — does not work. The market has no idea what you can afford.

The order of calculation

1. Set the stop level from structure.
2. Measure the distance in pips.
3. Decide the money risk (1–2% of the account).
4. Divide one by the other to get volume.

In that order. Start from volume and the stop inevitably lands where it will be taken out.

One rule without exceptions

A stop only moves toward profit. Widening a stop to "give the trade room" is the most expensive habit in trading: it turns a controlled loss into an uncontrolled one.

Size a trade against your stop with the lot size calculator.

Read next

• Take-profit and risk/reward
• Position sizing
• The 1–2% risk rule