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trentmkelly/
polymarket_historical_data

Name: polymarket_historical_data
Creator: trentmkelly
License: https://spdx.org/licenses/CC-BY-4.0.html

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Polymarket Historical Data

Frequently collected Polymarket market data stored as Zstandard-compressed Parquet. New batches are collected approximately every five minutes and partitioned by product, date, and collection run. Public upload of collected data began on July 23rd, 2026.

Data Products

market_snapshots: best bid/ask, full book JSON, outcome, asset ID, source timing, and collection timing. order_book_depth: normalized bid and ask levels with price, size… See the full description on the dataset page: https://huggingface.co/datasets/trentmkelly/polymarket_historical_data.