SPX500 Position Size Calculator

Size your S&P 500 (SPX500) trade by risk. Enter your account balance, risk percentage, entry price and stop loss — the calculator returns the number of contracts and total position value.

Account balance

Account currency

Risk input

Risk per trade (%)

Stop loss input

Entry priceStop loss price

Contract size (units per 1.00 lot)From your broker's symbol specification in MetaTrader (default: 1).

Results

Fill in the inputs to see your results.

SPX500 contract sizing

The S&P 500 is less volatile than the Dow point-for-point, but with a much higher index level. A 50-point stop is common. Use the same formula: contracts = risk ÷ stop distance in points.

Frequently asked questions

What is one SPX500 contract?

Most CFD brokers use 1 contract = 1 index point. Verify with your broker's contract size if the result seems off.