Trading Rules

Trading rules are the complete set of parameters, restrictions, and requirements that govern how you must trade during a prop firm challenge and on a funded account. These rules define everything from maximum loss limits to minimum activity requirements, and violating any single rule results in immediate account termination regardless of your profitability.

The **core trading rules** present across virtually all prop firms include: daily drawdown limit (typically 4-5% of starting balance), maximum total drawdown (typically 8-10%), profit target per phase (8-10% for Phase 1, 5% for Phase 2 in two-step challenges), and minimum trading days (usually 3-5 days per phase).

Beyond these universal rules, firms implement **strategy-specific restrictions**: whether news trading is allowed during high-impact events, whether Expert Advisors (EAs) can be used, whether copy trading from external signals is permitted, whether positions can be held over weekends, and whether hedging (opening opposing positions on the same instrument) is acceptable.

**Consistency rules** represent the newest category of trading rules. Firms like FTMO now require that no single trading day accounts for more than a certain percentage of total profits. This prevents traders from passing challenges with one lucky trade. Some firms require profits to be distributed across at least 50-60% of trading days, while others simply cap the maximum profit from any single day at 30-40% of the total profit target.

**Time-based rules** vary dramatically: some challenges have no time limit (The5ers), others give 30 days per phase (FTMO), and some offer unlimited time but require minimum monthly activity. Understanding these timeframes is crucial for matching a challenge to your trading style — swing traders need longer timeframes, while scalpers can complete challenges quickly but face tighter strategy restrictions.

The interaction between rules creates a **constraint optimisation problem**. You need to hit the profit target while staying within drawdown limits, trading enough days to meet minimums, maintaining consistency ratios, and avoiding prohibited strategies. This is why pass rates across the industry hover around 10-15% — the combined constraint pressure is significant.

Trading rules are the single most important factor in prop firm selection, yet most traders focus primarily on price and profit split. A firm with a 90% profit split but impossibly tight rules earns you nothing, while a firm with 75% profit split and generous rules lets you trade naturally and maintain funded accounts long-term.

Rules also determine your **sustainable trading approach**. If you naturally hold positions overnight and over weekends, firms that prohibit weekend holding eliminate your strategy entirely. If you trade during news events, firms that restrict news trading force you to fundamentally change your approach — which often leads to worse performance.

The interaction between daily drawdown and your position sizing is perhaps the most critical calculation. A 4% daily drawdown with your standard 2% risk per trade means just 2 consecutive losing trades can end your day. A 5% daily drawdown gives you 2.5 losing trades of buffer. This seemingly small 1% difference has an enormous impact on survival probability.