Real-time SPX 0DTE dealer gamma (GEX) dashboard: vectorized Black–Scholes Greeks, zero-gamma level, live WebSocket updates, Recharts UI, Postgres history, and pluggable providers (YFinance / Tradier). Next.js 16 + FastAPI. PolyForm Noncommercial.
nextjs market-data quantitative-finance black-scholes gex options-pricing fastapi spx yfinance gamma-exposure odte
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Updated
May 10, 2026 - Python