us-stock-gamma-moomoo

Gamma exposure and vanna pressure are calculated by processing moomoo OpenD option chain snapshots to compute signed GEX and VEX, then summarizing the results into walls, pits, and flip zones for a plain-language trading memo.

A gamma wall is a price level with concentrated positive gamma exposure that often resists price movement, while a negative-gamma pit is a zone where negative gamma accelerates price moves, both identified via option chain GEX distribution analysis.

You generate a pre-market trading memo by analyzing US stock or ETF option gamma exposure from moomoo OpenD, which produces an action framework outlining what to do and scenario invalidations based on identified gamma walls and pits.

Yes, the gamma exposure analysis supports SPX and SPXW intraday workflows via a dedicated parity-based index workflow, and also handles Nikkei proxies through an EWJ-to-index time-aligned conversion.

Yes, you need a moomoo OpenD and Python SDK environment configured to fetch option chains, because the internal scripts depend on this infrastructure to compute gamma reporting and generate scenario tables.

You should avoid relying solely on gamma exposure maps when raw JSON data export is needed without narrative context, or when your environment lacks moomoo OpenD connectivity to pull fresh option chain snapshots.