The tightest stop had the smallest drawdown and finished 25 years up 7.8%. Same entry with a wider stop made 92%.
Every risk thread says keep the stop tight. I had never seen the same entry run three times with nothing changed except the stop distance, so i ran it on SPY daily candles from January 2001 to the end of March 2026, ten grand each, commission and slippage charged on both sides of every fill.
Same rules all three times. Buy at the close when price closes above the highest high of the last 50 candles, stop a multiple of ATR below the entry, no target, out on the stop.
1 ATR stop: 167 trades, 30.5% wins, profit factor 1.06, +7.8%, max drawdown 17.2%
2 ATR stop: 135 trades, 47.4% wins, profit factor 1.22, +41.7%, max drawdown 22.3%
3 ATR stop: 125 trades, 60.0% wins, profit factor 1.41, +92.1%, max drawdown 21.6%
The tight stop did do the thing people say it does. It had the smallest drawdown of the three by about 5 points. It also turned ten grand into ten grand and change over 25 years, off the identical entry that made 92% with more room.
ATR is the average range, so a 1 ATR stop sits inside a normal days movement and roughly seven out of ten trades came out on noise rather than on the breakout being wrong. The win rate doubles between the tight stop and the wide one and the entry never moved, which tells you the entry was not the thing being measured in the first run.
The 2 and 3 ATR runs have nearly the same drawdown as each other, 22.3 against 21.6, so the extra room past 2 ATR cost nothing in drawdown and roughly doubled the return.
im not claiming wide stops are free. 125 trades across 25 years is 5 a year, so the sample under each line is thin, and a 3 ATR stop on a 25k futures account is a different problem because the dollar loss per trade is set by the contract rather than by you. On this entry, on this instrument, the tight stop bought back about 5 points of drawdown and paid 84 points of return for it.