• EA (Expert Advisor — automated trading script) selection turns on track record, drawdown, and profit factor.
  • HFT (high-frequency trading, sub-second activity) is banned on virtually every prop firm.
  • Best prop firm fits for EA users: FTMO, The5%ers, and FundingPips.
  • A VPS (virtual private server) is typically required for 24/7 EA operation.

EAs let you systematize and run a strategy without manual oversight. In practice, the difficult part is choosing one that actually works on live data rather than only in backtests.

How to evaluate an EA

Before running an EA on a funded account, check three numbers:

  • Live track record over at least three to six months — backtests alone are not enough.
  • Maximum drawdown (max equity decline) — lower is better, and the worst case should fit inside the prop firm’s daily and max loss limits.
  • Profit factor — the ratio of gross profit to gross loss. 1.3 or higher is generally considered acceptable.

That said, no EA is guaranteed to keep working. Market regimes change, and a system that thrived in 2023 can break in 2025.

Prop firm compatibility

By contrast with retail brokers, prop firms apply tighter rules to automation:

  • HFT is universally prohibited.
  • Copy trading from external signal providers is typically banned.
  • Account-to-account hedging is banned.
  • News-window trading restrictions usually still apply to EA trades.

Specifically, the EAs that pass prop firm scrutiny most easily are trend-following or swing systems with trade frequencies on the order of minutes to hours, not milliseconds.

  • FTMO — clear, published EA rules; industry standard.
  • The5%ers — instant-funding model fits live-data EA testing without a long evaluation phase.
  • FundingPips — low fees make iterative EA testing affordable.

Operational basics

  • Run the EA on a VPS so it stays online during news events and broker disconnects.
  • Keep position size well under the firm’s daily-loss line, even if the EA’s stop-loss logic is internal.
  • Monitor performance weekly — don’t assume “set and forget” applies on a funded account.

Risks to flag

Automation amplifies whatever logic you give it, including the bad parts. EAs can hit the daily-loss line faster than a discretionary trader because they don’t stop trading after a bad streak. There are no guarantees of profit. Size positions conservatively and review live performance often.

The5%ers — Skip the challenge

The5%ers official (coupon “HZZS4”)

FTMO — Industry standard

FTMO official