MS2 is built to think like the market, not follow it. Calibrated daily and grounded in first principles, it calculates prices independently and reveals how and why portfolio and hedge positions shift from day to day. MS2 delivers daily, risk-neutral attribution analysis that decomposes profit and loss into market movements, changes in pull-through rates, and hedge execution. Unlike lookup-based systems, it uses full stochastic modeling aligned with observable market data to uncover insights that simpler tools cannot match. This rigor supports more effective hedge strategies and gives managers the clarity and confidence to explain results.