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NAS100 lot size calculator (US100).

Size your Nasdaq 100 trades from your risk. Index CFDs are named NAS100, US100 or USTEC depending on the broker — and so is the contract size, so check it once and the math is done.

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Contract size = units per lot. For indices, metals and oil it differs between brokers — check the symbol’s lot size in your platform.

Position size
—lots
Risk amount
Stop distance
Loss per lot at stop
Risk at this size

Trading several prop accounts? Trade Governor does this for every account from its own balance and risk — draw the position once on TradingView and it’s sent to all your cTrader accounts. See how it works →

Example: NAS100 with 0.5% risk, contract size 1

Risk: 0.5% of $100,000 = $500 Stop distance: 25,000 − 24,950 = 50 points Loss per lot: 50 × 1 = $50 Position size: $500 ÷ $50 = 10.00 lots

Why NAS100 lot sizes vary so much

With a contract size of 1, one lot moves $1 per index point. If your broker uses 10 per lot, the same trade is 1.00 lot; with 20 it’s 0.50. Same risk, different numbers — that’s why the contract size field matters.

Where to find the contract size

Open the symbol’s information in your trading platform. In cTrader it’s in the symbol info under the lot size. Prop firms often use 1 unit per lot, but don’t assume it.

Chart the CFD, not the future

The Nasdaq futures contract (NQ) trades at a different price than the NAS100 CFD. Measure your stop on the same symbol you’ll trade.

Exchange rates are ECB reference rates from Frankfurter, updated once a working day. Results are guidance — check them against your platform before you trade.

Draw it once. That’s your order.

Trade Governor sizes every position from your risk and sends it to all your cTrader prop accounts. Free during the beta.

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