Rules 1-3: Slippage & Execution Filters
Achieving institutional fill parity demands strict boundaries coded into copier endpoints. The following three operational rules govern whether an incoming master trade should execute, re-quote, or abort entirely:
Rule 1: Enforce Asymmetric Maximum Slippage Caps. Never use unconstrained market execution on follower accounts. Configure a hard slippage tolerance ceiling (typically 0.4 to 0.8 pips on liquid majors, 1.2 pips on crosses). If the best available quote at the follower terminal exceeds the master open price by more than your limit, the trade must instantly discard rather than enter at a negative expectation.
Rule 2: Deploy Millisecond Time-to-Live (TTL) Deadlines. Fast-moving volatility moves orders through micro-trends in milliseconds. Implement a strict Order TTL of 400ms to 750ms. If network packets bottleneck and a child order arrives at the follower bridge after the TTL timer expires, the instruction is discarded rather than filled stale into a retracement.
Rule 3: Set Dynamic Spread Widening Killswitches. High-impact releases widen ECN book spreads from 0.1 pips to 4.5 pips. If the follower broker spreads expand beyond 2.0x normal median conditions, child order injection must pause. Entering on an artificially widened spread guarantees instant, adverse execution slippage.
'A missed profitable trade costs zero dollars. A trade entered two pips off-target due to bridge lag creates an unhedged statistical deficit before the market even breathes.'