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Datasets:
domdd
/
predict_ngin

Modalities:
Tabular
Text
Formats:
parquet
Size:
1B - 10B
Tags:
polymarket
prediction-markets
finance
polygon
trades
Libraries:
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Dask
Polars
License:
Dataset card Data Studio Files
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predict_ngin / README.md
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domdd
Polymarket snapshot through 2026-10-18 (part 2)
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metadata 
license: mit
pretty_name: Polymarket on-chain fills (predict-ngin)
tags:
  - polymarket
  - prediction-markets
  - finance
  - polygon
  - trades
size_categories:
  - 1B<n<10B
configs:
  - config_name: fills
    data_files: lake/polymarket/fills/*/*/*.parquet
    default: true
  - config_name: bars_1h
    data_files: lake/polymarket/bars_1h/*/*/*.parquet
  - config_name: bars_1m
    data_files: lake/polymarket/bars_1m/*/*/*.parquet
  - config_name: markets
    data_files: lake/polymarket/markets.parquet

Polymarket on-chain fills

Every Polymarket fill on Polygon from 2022-11 to 2026-10-18 (exclusive): 1,419,910,711 rows, $62.0B notional, YES-normalised (each fill priced as the YES outcome), sorted by category, event, market and time inside monthly folders. Also hourly and 1-minute OHLC / VWAP bars per market, and a market table with categories.

Built by predict-ngin from the SII-WANGZJ/Polymarket_data releases (MIT) and, after them, Polygon OrderFilled logs read from public RPC nodes.

Get it

With the predict-ngin repository (downloads into your data folder, then fetches the days since this snapshot and updates the lake):

uv run predict-ngin data pull polymarket

Without it:

hf download domdd/predict_ngin --type dataset --local-dir predict-data

or query it in place with DuckDB:

SELECT count(*) FROM 'hf://datasets/domdd/predict_ngin/lake/polymarket/fills/year=2026/month=*/*.parquet';

Layout

Path Contents
lake/polymarket/fills/year=YYYY/month=MM/ fills; fills_state.json has per-month row counts
lake/polymarket/bars_1h/, bars_1m/ per-market bars from maker fills
lake/polymarket/markets.parquet one row per market: question, event, tags, category
polymarket_clean/trades_ext/ source files predict-ngin uses to keep recent months current
polymarket/hf_20261005/ market lists used to map token ids to markets
polymarket_clean/event_tags.parquet Gamma event tags behind the market categories

Notes

  • Count volume with NOT is_taker_order_row. Rows from before 2025-12-30 include the taker order's aggregate rows; counting them double-counts volume.
  • ts_chain is the block time. Before 2025-12-30 it comes from Polygon block anchors, because the source release's own timestamps there are off by minutes to hours; ts_local keeps the release value. timestamp_unreliable flags rows with no anchored time.
  • yes_price and yes_side are YES-normalised; price_raw is the traded token's price.
  • Wallet addresses (maker, taker) are public on-chain data.
  • No Kalshi data is included.