XAUUSD position sizing without copying someone else’s lot size
How gold price moves, contract size, lot size, stop distance and account risk connect in an XAUUSD CFD.
Verify what one lot means first
Many gold CFDs use 100 troy ounces for one standard lot, but this is not guaranteed across brokers. Check contract size, minimum volume and volume step in the platform specification before doing risk arithmetic.
Translate a gold price move into cash P/L
With a 100-ounce contract, one full lot changes by roughly 100 USD when gold moves 1 USD per ounce. At 0.10 lot the same move is roughly 10 USD. A 10-dollar stop on 0.10 lot therefore models about 100 USD gross risk.
Derive lot size from account risk
A 1% budget on a 10,000 account is 100. If one lot would lose 1,000 at the stop, the cost-free raw size is 0.10 lot. Add spread and commission when they are meaningful relative to the stop.
Check margin separately
A risk-based size can still require different margin under different broker rules. Higher available leverage reduces margin required for the same exposure; it does not reduce the P/L produced by a 10-dollar gold move on that exposure.
Volatility and execution
Gold can move rapidly around macro events and can gap or slip. Use the XAUUSD lot calculator, price-move P/L calculator and ATR stop calculator for size, cash sensitivity and distance as separate checks.
Last reviewed: 2026-08-31