Equity Curve Management and Drawdown Repair

The equity curve is a strategy's vital sign. Most traders treat it as a scoreboard; the disciplined trader treats it as an input. Managing the curve means sizing positions by its state and repairing drawdowns with rules, not emotion.

Reading the curve regime

An equity curve has three regimes: trending up, choppy sideways, and drawdown. Detect them with a moving average of the curve:

• Equity above its 50-trade (or 50-day) moving average and the MA sloping up: regime is healthy. Run full size.
• Equity below the 50-MA but above the 200-MA: regime is choppy. Run 50% size.
• Equity below the 200-MA or in a defined drawdown: regime is broken. Run 25% size or pause.

The de-risking ladder

Define drawdown thresholds from peak equity and pre-commit the size reduction:

• 5% drawdown: full size (within normal noise).
• 10% drawdown: cut size to 50%.
• 15% drawdown: cut size to 25%.
• 20% drawdown: pause the strategy for 20 trading days; review before resuming.

The reductions are asymmetric on purpose: cut fast, restore slowly. Restoring size requires the curve to make a new high plus a confirmation period, not just a bounce.

Why cut size in drawdown

Two reasons. First, drawdowns cluster — a strategy in drawdown is more likely to draw down further than to recover instantly, because edge decay and regime change produce sustained losses, not single bad trades. Second, the psychological cost of a deep drawdown is nonlinear: at −10% a trader trades the plan; at −25% the trader trades their fear. Smaller size keeps the trader in the plan.

Drawdown repair rules

Repairing a drawdown is not about "making it back fast." It is about surviving to the recovery:

1. Reduce size per the ladder above.
2. Do not change the strategy. Revenge edits — adding filters, widening stops, switching instruments — compound the loss with confusion. Trade the validated strategy at smaller size.
3. Set a recovery milestone, not a deadline. "Return to within 5% of peak at half size" is a milestone. "Recover in 30 days" is a deadline that invites over-risking.
4. Restore size gradually. After reaching the milestone, restore to 75% size for 20 trades, then full size. Jumping back to full size risks a second drawdown layered on the first.

When to stop repairing

If a drawdown exceeds the strategy's historical worst by 1.5×, the edge is likely gone, not paused. Stop the strategy, audit the edge, and do not resume until you understand why it broke. Continuing to trade a broken strategy "to recover" is how 20% drawdowns become 50% ones.

The curve as risk budget

Treat peak equity as a budget. Drawdown is spending the budget. The deeper you spend, the more conservative the remaining spending must be — because the capital left has to do the recovery work. Equity curve management is the discipline of spending the budget slowly so there is always capital left to recover with.