Polygon · Schema

Polygon NBBO Quote Tick

A National Best Bid and Offer quote tick from the Polygon WebSocket cluster.

FinanceFintechMarket DataStocksOptionsForexCryptoIndicesFuturesWebSocketsReal-timeHistoricalPublic APIs

Properties

Name	Type	Description
ev	string
sym	string
bx	integer	Bid exchange ID.
bp	number	Best bid price.
bs	integer	Bid size.
ax	integer	Ask exchange ID.
ap	number	Best ask price.
as	integer	Ask size.
t	integer	SIP timestamp (Unix milliseconds).

View JSON Schema on GitHub

JSON Schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/polygon/main/json-schema/polygon-quote-schema.json",
  "title": "Polygon NBBO Quote Tick",
  "type": "object",
  "description": "A National Best Bid and Offer quote tick from the Polygon WebSocket cluster.",
  "properties": {
    "ev": { "type": "string", "const": "Q" },
    "sym": { "type": "string" },
    "bx": { "type": "integer", "description": "Bid exchange ID." },
    "bp": { "type": "number", "description": "Best bid price." },
    "bs": { "type": "integer", "description": "Bid size." },
    "ax": { "type": "integer", "description": "Ask exchange ID." },
    "ap": { "type": "number", "description": "Best ask price." },
    "as": { "type": "integer", "description": "Ask size." },
    "t": { "type": "integer", "description": "SIP timestamp (Unix milliseconds)." }
  },
  "required": ["ev","sym","bp","ap","t"]
}