GEX levels

GET/v1/gex/{symbol}Named fields

End-of-day dealer gamma levels and regime for one symbol.

Parameters

symbolpathrequired
Ticker symbol, case-insensitive.

Response contract

Only the fields listed are promised. Anything else may change.

Promised fields

symbolasOfspotfliphvlcallWallputWallcallResistanceputSupportnetGexregimeconfidencedisclaimer

How this was verified

Called against 3 different subjects on the live API. Every field it returned, at every level, was compared with the contract above. Last checked August 18, 2026.

Request

curl "https://api.massari.ai/v1/gex/SPY" \
  -H "Authorization: Bearer $MASSARI_TOKEN"

Example response

{
  "symbol": "SPY",
  "asOf": "2026-08-14",
  "spot": 777.831756,
  "flip": 773.262487,
  "hvl": 773.262487,
  "callWall": 780,
  "putWall": 765,
  "callResistance": 780,
  "putSupport": 765,
  "netGex": 5050872358.04,
  "regime": "positive",
  "confidence": "high",
  "disclaimer": "Informational only — not investment advice. Computed dealer gamma exposure from EOD options."
}

A real response from the live API, captured August 18, 2026. Nothing was dropped, so this is the whole shape. Either way it is valid JSON.