Prop firm EA: running a gold robot inside funded-account rules

Every firm publishes its own limits: a daily loss cap, an overall drawdown cap, a minimum number of trading days, and often restrictions on news trading, weekend holding or copy trading. Some allow expert advisors freely, some allow them with conditions, some prohibit them. These terms change, so check the current version for your account rather than relying on a summary.

Write the three numbers that matter on paper before touching any setting: daily loss limit, maximum drawdown, and profit target.

Most failed challenges are position-sizing failures. If the daily loss limit is 5% and you accept that the robot can take three losing trades in a row on a bad day, then no single trade can risk more than roughly 1.5% of the account.

MetHaND's strategy panel lets you set risk per trade, a fixed or automatic lot size, and a daily loss limit that stops trading for the rest of the day once it is hit. Set that internal limit below the firm's limit, not equal to it, so slippage and spread cannot push you over the line.

XAUUSD moves further per unit of time than most currency pairs and its spread widens around the New York open and major US data. A stop distance that is comfortable on EURUSD can be inside normal gold noise, which turns into a run of small losses on the same day.

Restricting the robot to the London and New York overlap and disabling it around high impact US releases removes the sessions where slippage does the most damage.

Backtests use historical spread assumptions that rarely match a prop firm's feed. Run the robot on the firm's demo or trial account for at least a few weeks with the exact settings you plan to use, and compare realised drawdown against the rule you have to respect.

Only after that comparison holds up is it reasonable to pay for a challenge. Nothing here is a guarantee of passing one.