FirmTape
SPX gamma exposure (GEX) — dealer gamma, vanna, charm and the zero-gamma flip, live from t
FirmTape provides live and historical options market data, specifically SPX gamma exposure (GEX), dealer positioning, and related analytics. The platform includes a live stream of the dealer book rebuilt every second, a free archive of over 1,100 finished trading sessions, a backtesting lab (LAB) for trading ideas, and an assistant (ASK) that answers questions from the platform's own measurements. It also offers integrations with trading platforms like NinjaTrader, Sierra Chart, and TradingView, and a levels API.
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