Daily Drawdown
A per-day loss limit that caps how much an account can lose in a single trading day, separate from the overall max drawdown.
Definition
Daily drawdown (also called daily loss limit) is a cap on losses within a single trading day. It resets at the start of each new day — typically 5 PM EST for US-based firms, which is the futures market rollover. Daily drawdown is measured independently from max drawdown and can be breached on its own: a trader can blow up an account on the daily limit while still well inside the overall max drawdown.
Example
Why It Matters
Daily drawdown ends more challenges than max drawdown does. It is the invisible trip wire: traders focused on total account performance often forget that a single bad session can breach the daily limit even when cumulative PnL is positive. The timing of the daily reset (commonly 5 PM EST) also matters — positions held through the rollover can have their losses counted on the wrong day.