{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/polygon/main/json-schema/polygon-trade-schema.json",
  "title": "Polygon Trade Tick",
  "type": "object",
  "description": "A single trade tick as emitted on the Polygon WebSocket stocks/options cluster.",
  "properties": {
    "ev": { "type": "string", "const": "T" },
    "sym": { "type": "string", "description": "Ticker symbol." },
    "x": { "type": "integer", "description": "Exchange ID." },
    "i": { "type": "string", "description": "Trade ID." },
    "p": { "type": "number", "description": "Trade price." },
    "s": { "type": "integer", "description": "Trade size." },
    "c": { "type": "array", "items": { "type": "integer" }, "description": "Trade condition codes." },
    "t": { "type": "integer", "description": "SIP timestamp (Unix milliseconds)." }
  },
  "required": ["ev","sym","p","s","t"]
}