Market Replay Simulator
A brokerage-grade options replay: a position loads on a real BTC session — press play and watch spot, greeks, P&L, margin and the risk graph evolve, adjusting the position live (increase, reduce, roll, hedge, close) with strict no-look-ahead. Use New setup to change the day or position. Reconstructed from the executed trade tape (Apr 2024 – 2026-07-27), kept current by the live recorder.
Replays a real BTC session minute-by-minute from the executed trade tape. Strikes are the full listable ladder around spot: those that actually traded use real last-trade prices; ones marked · modeled never traded by the entry time and are priced by Black-Scholes at the entry ATM IV (a model, not real fills). Nothing past the current minute is shown. Educational — not a signal or advice.