FUNDEDDECK

Funded Account Position Size Calculator

Enter your remaining trailing-drawdown room, your stop distance in ticks, and the cushion you want left over after a worst-case stop-out. This sizer computes the maximum contracts you can carry in NQ, MNQ, ES, and MES so that one full stop still leaves your funded account alive — not just barely, but with a reserve.

Position sizer

Don't know it? → trailing drawdown calculator

0.25-pt ticks; 40 ticks = 10 points on NQ/ES.

Room you refuse to spend. Default $150.

Instrument Tick value Stop cost / contract Max contracts

Trading multiple funded accounts? Your copier sends the same size everywhere — that's how account #10 dies while account #1 looks fine. Size to the account with the least room, then watch the full replay to see it play out tick by tick.

How this is calculated

The sizer answers one question: if every contract you're holding gets stopped for the full stop distance, how many contracts can you carry without eating past your reserve? It spends only the room you allow it to spend, then divides by the dollar cost of one stopped contract and rounds down.

stopCost = stopTicks × tick$ (NQ $5 · MNQ $2 · ES $12.50 · MES $1.25 per tick) maxContracts = floor( (room − reserve) / stopCost ) if maxContracts ≤ 0 → SIT OUT

Worked example

  1. Room $1,200, reserve $150 → spendable = 1200 − 150 = $1,050.
  2. Stop 40 ticks on NQ at $5/tick → stop cost = 40 × 5 = $200 per contract.
  3. Max contracts = floor(1050 / 200) = 5. Five NQ stopped at full distance costs $1,000, leaving $200 of room — reserve intact. A 6th contract would spend $1,200 and breach the $150 buffer.

The floor matters. 5.25 contracts doesn't exist — and rounding up is exactly how traders discover their trailing threshold from the wrong side. If the spendable room can't cover even one full stop, the honest answer is SIT OUT: no size is a valid position size.

Watch this math save an account — run the full replay

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