Expert Advisor (EA)
An automated trading program that places orders for you — powerful, permitted by many firms with conditions, and worth checking the rules on before you switch it on.
An Expert Advisor is an automated strategy — code that watches the market and places, manages, and closes trades without you clicking anything. The term comes from the MetaTrader world, but the concept covers any bot, algo, or automated strategy, including ones built in futures platforms or wired in through an API.
Automation is a genuine edge when it encodes a strategy you already understand. It executes at the same speed at 3pm as it does at 3am, it doesn’t widen a stop because it “feels” like a bounce, and it can watch more products than you can. Many funded traders run semi-automation — an EA handling entries while they manage exits, or a bot handling one product while they trade another manually.
Where traders get caught out is assuming “allowed” is universal. It isn’t, and firm policies differ. Check these before you deploy:
- Is full automation permitted, or only semi-automated / assisted execution?
- Do you have to disclose the strategy or get it approved first?
- Are there speed and frequency limits? Most futures firms restrict very high-frequency behavior — see the HFT rule.
- Are specific mechanics banned? Martingale sizing, latency arbitrage, and reaction-speed news scalping commonly are.
- Does the bot respect the risk rules natively? Your EA must know your daily loss limit, your max contracts, and where your trailing drawdown floor sits — the platform won’t always stop it for you.
That last one deserves a hard-coded guard. An EA that adds a contract on every re-entry will find your drawdown floor faster than any manual mistake will. Build the account rules into the code and the bot becomes a discipline machine rather than a risk one.
Automation done inside the rules is one of the cleanest ways to scale. Read prohibited strategies at prop firms, then confirm each firm’s automation policy in our directory.