The internet is full of generic stop loss advice: "Use a 2% stop." "Place your stop below the previous swing low." "Use ATR-based stops." These rules of thumb aren't wrong, but they're not specific to you. Your trade data tells a far more precise story about where your stops should be — and more importantly, which stop loss behavior is actually costing you money. ## The Stop Loss Problem Most Traders Don't See Most traders think their stop loss issue is placement — where to set the stop. But data analysis consistently reveals that the bigger issues are behavioral: ### Problem 1: Moving Stops (The Widener) You set a stop at -$100. Price approaches it. You move it to -$150. Price approaches again. You move it to -$200. By the time you finally exit, you've taken a loss 2-3x larger than planned. **How to detect it in your data:** Compare your planned stop distance (if you track it) to your actual loss on losing trades. If your actual average loss is significantly larger than your planned stop, you're widening. **Alternative metric:** Look at your loss distribution. If you have a cluster of losses right around your planned stop size AND another cluster of much larger losses, the second cluster likely represents moved stops. ### Problem 2: Removing Stops (The Hoper) Even worse than moving stops is removing them entirely. "I'll just watch it" turns into "I'll give it more room" turns into a catastrophic loss. **How to detect it:** Look for outlier losses — trades where the loss is 5-10x your average losing trade. These almost always represent removed stops. ### Problem 3: Stops Too Tight (The Chopper) The opposite problem. Your stops are so tight that normal market noise triggers them repeatedly. You're right on direction but wrong on timing, and the accumulated small losses add up. **How to detect it:** Look at trades that hit your stop and then moved in your intended direction. If more than 30-40% of your stopped-out trades would have been profitable with a