Trailing drawdown

Part of Drawdown mechanics in the PropSurvival glossary — defined the way the engine actually measures it.

Floor ratchets up, never backTrailing drawdown

A maximum-loss floor that ratchets upward as your equity makes new highs, staying a fixed dollar distance below the peak. It never moves back down. The intraday variant (Apex-style) tracks unrealized equity peaks trade by trade; the end-of-day variant (Topstep-style) only ratchets on closing equity. Same name, very different survival math.floor = peak equity − fixed allowance · measured: the intraday mechanism