NAS100 lot size calculator (US100)

Lot size for the Nasdaq 100 CFD from your risk and your stop in index points. Brokers set the contract size differently, so check yours and change it here; then pick your prop firm account to check the stop against its limits.

1Your account

Fills in the balance and the firm's limits for a fresh account

2Your trade

From your broker. MT5: Market Watch → right-click NAS100 → Specification → Contract size. Usual: 1.

NAS100 · $1 per point per lot
Position10.00 lots
At risk$5001% of balance
Per point$10at this size

Trade 10.00 lots to risk $500 at your stop.

FX conversions use the ECB reference rates of 2026-10-13. Sizes are rounded down, so the risk never goes over what you set. A stop doesn't guarantee your fill: in fast markets the loss can be larger.

Worked example

A 50-point stop on NAS100 (contract size 1) costs $1 per point for one lot. With $500 at risk: $500 ÷ (50 × $1) = 10 lots, losing $500 at the stop.

On a prop account the stop also has to fit the firm’s limits: what is left of today’s daily loss limit, the room to the max loss. Pick your firm above and the calculator sizes the trade inside all of them.

With your prop firm’s limits

The same calculator, opened on a firm’s accounts with their daily loss limit, max loss filled in.

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Questions

How much is one point on NAS100?

It depends on the broker’s contract size. With a contract size of 1, one index point is $1 per lot; with 10 it is $10 per lot. In MT5, right-click NAS100 in Market Watch → Specification and read Contract size.

How do I calculate lot size for NAS100?

Lot size = risk in dollars ÷ (stop in points × contract size). With $500 at risk, a 50-point stop and a contract size of 1: 500 ÷ (50 × 1) = 10 lots.

Is NAS100 the same as US100 or NQ?

NAS100 and US100 are broker names for the same Nasdaq 100 CFD. NQ and MNQ are the CME futures on the same index: NQ is worth $20 a point per contract and MNQ $2; use the futures calculator for those.