Options
Options.
Two reads on the options market: where dealers are pinned, and where contracts are stacked. Both power the Levels API.
GEX · Gamma Exposure
Dealer gamma by strike — the call wall, the put wall, and the zero-gamma flip where price gets fast.
SPX call wall7,500
Zero-gamma7,522.5
Put wall7,500
Open GEX
OI · Open Interest
Where contracts are concentrated — max pain, the put/call balance, and the strikes acting as magnets into expiry.
SPX max pain7,500
Put / call ratio0.96
Call OI peak7,500
Open OI
Both feeds ship as the Levels API — api.tapelab.io, JSON, key-authed. API docs →