Best Prop Firms for EA and Algo Trading

What EA and algo trading rules cover

An expert advisor, or EA, is a program that opens, manages or closes trades by itself on a platform such as MetaTrader, and trading bots do the same on other platforms. Prop firms set rules on which kinds of automation they accept and on what conditions. The firms listed above allow EAs or bots on at least one program, and the list changes as firms rewrite their rules.

A worked example

A trader wants to run a self built EA on a made up $100,000 example account with a 4% daily loss limit and an 8% maximum loss. For a strategy that risks a fixed share of the account on each trade, the worst day and worst drawdown in a backtest move roughly in proportion to that risk. The figures are an illustration, not any firm's plan.

At 1% the EA breaks both limits in its own backtest. At 0.5% it clears the daily limit by 1.4 percentage points and the maximum loss by 2.5, which leaves some margin for a worse run than the test found. An equity guard that stops trading after a set loss in a day, a news filter where the funded account restricts news, and a check against the firm's daily reset time complete the changes. Permission to use an EA is the first check; building it to live inside the account's limits is the second.

Who this suits

These programs suit traders who have built and tested their own automated strategy, traders who use scripts to manage stops, targets and position size, and traders who cannot watch the market during the sessions their strategy trades. They suit traders less well if they plan to run an EA bought from a vendor, since firms treat shared code as a risk, or if the strategy depends on very short holding times or large numbers of orders.

The trade offs

Permission often comes with conditions. Some firms require approval of the EA before use, a declaration of the strategy or a paid add on, and some allow automation only on certain platforms. Server limits on orders per day or open positions can restrict busy strategies. An EA allowed in the evaluation may be banned on the funded account, which leaves a passed account that cannot be traded the same way. Automated strategies can also break rules faster than people do: an EA with no news filter or daily stop can breach an account in minutes.

How firms differ

Firms group automation into trade management tools, self built strategies, shared or commercial EAs and exploitative systems such as latency arbitrage, and they draw the line at different points. Some allow only management tools, some allow self built EAs freely, and some allow them only after approval. Futures firms tend to be stricter than forex and CFD firms, and several ban bots outright. Rules on minimum holding times, order counts and running the same EA across several accounts also vary.

What to check before you buy

• Which automation is allowed. Confirm whether self built EAs, third party EAs and trade management tools are each allowed on the program you are buying.
• Both stages. Check the rule for the evaluation and for the funded account.
• Approval or add ons. Find out whether the EA needs approval, a declaration or a paid option.
• Platform support. Make sure the platform your EA runs on is offered with automation enabled.
• Technical limits. Check order caps, minimum holding times and rules on running one EA across several accounts.

How to compare the firms listed

Rule firms in or out first on the automation policy for the exact program and stage, since no other feature matters if the EA cannot run. Then compare the account rules the EA must live within: the daily loss limit and when it resets, the maximum loss type, news restrictions on the funded account and any minimum holding time. Finish with fees, profit split and payout terms. Each firm's profile lists its platforms and rules, and the comparison table filters firms by platform.

EA and trading bot rules at prop firms covers the rules in more depth, and how prop firms detect rule violations explains what firms monitor on automated accounts. Running one strategy across several accounts falls under copy trading rules, with firms listed under copy trading, and platform pages such as MT5 prop firms show where automation runs.