The vocabulary of prop futures trading.
Plain-English definitions for the terms that actually matter when you're running a funded account on NinjaTrader 8 — drawdown mechanics, execution primitives, behavioral guardrails, and prop firm structures.
Risk
- Trailing drawdown
A drawdown rule whose threshold moves up with every new equity high during the session, locking traders out of giving back winners.
Definition - End-of-day drawdown
A drawdown rule calculated once per day on your closing balance — intraday volatility doesn't count.
Definition - Daily loss limit
The maximum dollar amount you can lose in a single trading day before the account is breached.
Definition - Drawdown buffer (safety buffer)
A self-imposed limit inside the firm's actual limit — your guardrail before the firm's guardrail.
Definition
Execution
- Auto flatten
An automated trigger that closes all open positions and cancels working orders when a defined risk condition fires.
Definition - Daily closeout
A time-based trigger that flattens the account and disables trading at a configured Eastern Time each day.
Definition - Bracket order
A protective pair of orders — a stop loss and a profit target — attached to an entry as a one-cancels-other group.
Definition - Breakeven stop
A stop loss adjustment that moves your stop to your entry price (plus an offset) once the trade has reached a defined favorable condition.
Definition - Scale-out
A pre-planned partial exit at a price level less than the full target — typically used to bank some profit and reduce risk on the remaining position.
Definition - Tick
The smallest allowable price increment for a given futures contract — and the unit most prop traders count P&L in.
Definition
Behavior
- Order Lock
A one-click trading-lockout that disables order entry until the next session — designed to prevent revenge trades after a triggering event.
Definition - Discipline Score
A numerical score that measures plan adherence on every trade — inputs, not outputs — so you can see whether you're actually getting better.
Definition