Stop-Loss Strategies That Actually Protect Your Account
Stop placement methods: structural stops, ATR stops, time stops, and why wide stops break prop firm accounts.
Three stop types
Structural stops: place stop where the trade thesis is invalidated (below a flag low, above resistance). These are the best — your stop is at a level where you genuinely believe the setup is wrong. ATR stops: multiply ATR by 1.5–2 and use that distance. Useful when structure is ambiguous. Time stops: exit if the trade hasn't moved in your direction within N bars. Works well for momentum setups that need to go immediately.
Why traders move stops
Two psychological reasons: loss aversion (pain of taking the loss) and confirmation bias (reinforcing the original thesis even as it weakens). Both are fatal on prop firms because every stop-moved is a rule violation waiting to happen. Hard rule: set stop at entry, don't touch it except to move to breakeven after the first target.
Stop placement and position size interact
A wide structural stop (say 5% from entry) means you have to size down 5x compared to a tight stop (1% from entry) to keep the same dollar risk. Don't compensate by using a tighter stop — that violates structure. Always size to the structural stop, not the other way around.