Market Master DUO is an MT5-exclusive Expert Advisor that simultaneously manages two highly correlated Canadian dollar pairs - NZDCAD and AUDCAD — using a correlation-aware Dollar Cost Averaging (DCA) grid system on the H1 timeframe. Both pairs trade from a single NZDCAD chart, so no separate AUDCAD chart attachment is needed. What distinguishes DUO from standard grid EAs is its correlation logic: the system will never hold long positions on both NZDCAD and AUDCAD at the same time, and never holds short positions on both simultaneously. By recognizing that these pairs tend to move in tandem, DUO deliberately avoids stacking directional exposure during broad CAD-driven market moves. When a trade moves against the initial entry, the EA averages into the position at defined pip intervals. A configurable Step Lot Multiplier scales subsequent position sizes, while a hard drawdown limit — set as either a percentage or fixed dollar amount — closes all trades automatically if losses reach your defined threshold. You can also configure specific trading windows using server-based start and stop times to avoid low-liquidity sessions. The vendor, Market Master EA, is a London-based developer with verified Myfxbook track records across their EA lineup, active Trustpilot reviews, and a public podcast covering their trading approach. DUO is their second EA release, priced at $299 with a 30-day money-back guarantee, FIFO compliance, and a free demo version available before purchase.