Trader Exit Markers

Room ID: polymarket_trader_pnl_exits
Endpoint: wss://api.struct.to/ws
Rate: 0.025 credits per message

Stream one marker per position close for tracked traders, batched per block. Each marker captures the realized PnL and the reason a position closed, so you can overlay exits directly onto a PnL chart.

Related guide: PnL chart with exit markers plots realized PnL and annotates each close with its exit reason.

Exit reasons

Reason	Meaning
`resolved_win`	Held to market resolution and won by verdict
`resolved_loss`	Held to market resolution and lost by verdict
`sold_win`	Closed before resolution with positive realized PnL
`sold_loss`	Closed before resolution with negative realized PnL

The traders filter is required.

Filters

Filter	Type	Required	Description
`traders`	`string[]`	Yes	EVM wallet addresses (0x-prefixed), non-empty
`reasons`	`string[]`	No	Subset of `["resolved_win","resolved_loss","sold_win","sold_loss"]`, or `["all"]`
`subscribe_all`	`boolean`	No	Firehose: receive exits for every trader. The `traders` filter is ignored when set; `reasons` still applies

Example

{
  "type": "join_room",
  "payload": {
    "room_id": "polymarket_trader_pnl_exits"
  }
}

{
  "type": "room_message",
  "payload": {
    "room_id": "polymarket_trader_pnl_exits",
    "message": {
      "action": "subscribe",
      "traders": ["0x1234567890abcdef1234567890abcdef12345678"]
    }
  }
}

Response

{
  "type": "trader_exit_markers_stream_subscribe_response",
  "room_id": "polymarket_trader_pnl_exits",
  "data": {
    "traders": ["0x1234567890abcdef1234567890abcdef12345678"],
    "rejected": [],
    "error": null
  }
}

Events

`trader_exit_marker_batch`

One marker per position close.

{
  "type": "trader_exit_marker_batch",
  "room_id": "polymarket_trader_pnl_exits",
  "block": 68420001,
  "data": [
    {
      "trader": "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045",
      "position_id": "12345678901234567",
      "condition_id": "0x1234567890abcdef1234567890abcdef1234567890abcdef1234567890abcdef",
      "event_slug": "bitcoin-price-markets",
      "market_slug": "will-bitcoin-hit-100k",
      "title": "Will Bitcoin hit $100k?",
      "question": "Will Bitcoin hit $100k by end of year?",
      "image_url": "https://polymarket.com/images/market.png",
      "outcome": "Yes",
      "outcome_index": 0,
      "pnl_usd": 350.25,
      "pnl_pct": 35.9,
      "cost_basis_usd": 975.0,
      "reason": "sold_win",
      "block": 68420001,
      "ts": 1743500000
    }
  ]
}

Field	Type	Description
`trader`	`string`	Wallet address
`position_id`	`string`	ERC-1155 token ID (decimal string)
`condition_id`	`string`	Condition ID
`event_slug`	`string`	Owning event slug
`market_slug`	`string`	Market slug
`title`	`string`	Market title
`question`	`string`	Market question
`image_url`	`string`	Market image URL
`outcome`	`string`	Outcome label (for example `Yes`)
`outcome_index`	`int \| null`	Outcome index
`pnl_usd`	`number`	Realized PnL at exit, in USD
`pnl_pct`	`number`	Realized PnL as a percentage
`cost_basis_usd`	`number`	Cost basis of the closed position, in USD
`reason`	`string`	Exit reason (see taxonomy above)
`block`	`int64`	Block of the exit
`ts`	`int64`	Exit timestamp (Unix seconds)

Introduction

Rooms

Alerts

Exit reasons

Filters

Example

Response

Events

`trader_exit_marker_batch`

​Exit reasons

​Subscribe

​Filters

​Example

​Response

​Events

​trader_exit_marker_batch

Exit reasons

Subscribe

Filters

Example

Response

Events

`trader_exit_marker_batch`