Data Schemas
Trades
Schema for Polymarket WebSocket trade executions.
Each row represents a trade execution reported by the Polymarket market WebSocket.
Data type: trades · Download sample ↗
Schema
All fields come from the raw Polymarket WebSocket, not computed by PMData.
| Field | Type | Description |
|---|---|---|
market_slug | string | Polymarket market_slug. |
timestamp | timestamp[us] | Polymarket event timestamp. |
local_timestamp | timestamp[us] | PMData receive timestamp. |
event_type | string | Source row type, normally last_trade_price. |
outcome | string | Traded outcome, usually Yes or No. |
price | float | Execution price from 0 to 1; represents the implied probability of the selected outcome. |
size | float | Number of outcome tokens traded. |
side | string | Aggressor side: BUY or SELL. |
trade_id | string | null | On-chain transaction hash of the trade. Null when unavailable. |
Example data
| market_slug | outcome | price | size | side |
|---|---|---|---|---|
btc-updown-5m-1784332800 | No | 0.49 | 2 | SELL |
btc-updown-5m-1784332800 | Yes | 0.51 | 5.882351 | BUY |