Request symbol
Optional historical date=YYYY-MM-DD.
GEX / market structure
Options GEX API (Chinese: 期权 GEX API)
Precomputed symbol snapshots for dealer-style GEX positioning. Chinese hub for 期权 GEX API searches.
Same API as /market_structure — model-based put signing, not disclosed dealer inventory.
From chain to levels
Use structure for dashboards; chains for filters.
Read GEX walls
Call/put GEX and OI walls vs spot.
Gamma flip / max pain
Key underlying levels.
IV context
Rank, percentile, skew on symbol_meta.
GEX API notes
- Structural model, not a dealer book report
- Net GEX ≈ call_gex + put_gex (put already signed)
- Use option chain for contract-level quotes
- Docs: /docs/market-structure-api/
- Included with realtime entitlement
- Chinese hub links from 美股期权 API page
Example: SPY structure
curl 'https://www.optiondata.io/api/v1/market-structure/SPY' \
-H 'Authorization: Bearer YOUR_API_KEY'Related
Structure product and Chinese hubs.
GEX API FAQ
What is 期权 GEX API?
An API returning Gamma Exposure and related structure levels for an underlying option chain, for positioning dashboards and research.
Is this dealer inventory?
No. Put GEX uses a documented structural signing convention. It is not a report of any dealer’s actual book.
How do I get historical structure?
Pass date=YYYY-MM-DD when a retained snapshot is available; omit date for the active snapshot.