Does Polygon offer dark pool data?

Feb 11, 2022
Updated: Jun 30, 2023

Yes, we do provide dark pool data. While we don't have an endpoint that specifically returns only dark pool trades, you can identify them using our Trades endpoint and our Trades WebSocket feed. Dark pool trades can be identified by their exchange ID of 4 (exchange:4) and the presence of an "trf_id" field. For example:

{ "conditions":[12,37], "exchange":4, "id":"1", "participant_timestamp":1642594169516358704, "price":170.28, "sequence_number":58452, "sip_timestamp":1642597200042949698, "size":62, "tape":3, "trf_id":201, "trf_timestamp":1642597200042608441 }


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All data provided on Polygon is provided for informational purposes only, and is not intended for trading or investing purposes. Polygon provides all information as is. You must not redistribute information displayed on or provided by Polygon. Stock prices displayed in the ticker are from a subset of exchanges, this price does not represent the real-time price from the SIP.

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