recording live since Feb 2026
Polymarket historical tick data, market by market
Second-by-second prices and orderbook depth from every BTC & ETH Up/Down market round — clean CSV and JSONL files built for backtesting, machine learning and prediction-market research.
The datasets
One file per market round, named by its closing timestamp. Browse day-by-day statistics and download a free sample from each dataset page.
Bitcoin 5-Minute Up/Down Tick Data
CSVSecond-by-second Up/Down share prices from every Polymarket “Bitcoin Up or Down” 5-minute market. Each CSV covers one full market round: timestamps, Up price, Down price and time remaining.
Ethereum 5-Minute Up/Down Tick Data
CSVSecond-by-second Up/Down share prices from every Polymarket “Ethereum Up or Down” 5-minute market. Each CSV covers one full market round: timestamps, Up price, Down price and time remaining.
Bitcoin 5-Minute Market Orderbook Depth
JSONLFull bid/ask depth snapshots from Polymarket BTC 5-minute Up/Down markets, captured roughly every 1.5 seconds as JSONL. Every price level and size, for both the Up and Down side.
What a market round looks like
The most volatile BTC 5-minute round from 2026-07-26: the Up share swung 78¢ and the lead flipped 2 times before resolving DOWN.
| timestamp | time (UTC) | up_price | down_price | remaining_min |
|---|---|---|---|---|
| 1785025802 | 00:30:02 | 0.44 | 0.59 | 4.96 |
| 1785025835 | 00:30:34 | 0.25 | 0.76 | 4.42 |
| 1785025865 | 00:31:04 | 0.34 | 0.67 | 3.92 |
| 1785025894 | 00:31:34 | 0.36 | 0.65 | 3.43 |
| 1785025923 | 00:32:03 | 0.38 | 0.63 | 2.95 |
| 1785025953 | 00:32:32 | 0.73 | 0.28 | 2.46 |
| 1785025982 | 00:33:02 | 0.65 | 0.36 | 1.96 |
| 1785026012 | 00:33:31 | 0.77 | 0.24 | 1.47 |
| 1785026042 | 00:34:01 | 0.25 | 0.76 | 0.97 |
| 1785026071 | 00:34:31 | 0.05 | 0.96 | 0.48 |
Built for backtesting
Every round is a complete, self-contained time series from open to resolution. Replay markets tick by tick, test market-making or momentum strategies, and measure exactly how prices converge in the final seconds.
ML-ready structure
Uniform schema across 76,954 price files — load the whole archive into pandas with a five-line script (included in the docs) and start training on labelled, naturally-resolved binary outcomes.
Depth, not just price
The BTC orderbook dataset captures every bid and ask level for both the Up and Down side, ~1.5 seconds apart — liquidity, spreads and order flow around binary expiries.
Common questions
- What data does PredictionTicks provide?
- Tick-level recordings of Polymarket crypto Up/Down prediction markets: BTC 5-minute and ETH 5-minute share prices in CSV, plus full BTC orderbook depth snapshots in JSONL.
- How is the data collected?
- A recorder polls the public Polymarket APIs roughly every 1.5–2 seconds for the lifetime of each market round and writes one file per round. Recording has run continuously since February 2026.
- Can I try the data before buying?
- Yes — every dataset page has a free downloadable sample covering a full trading day, no sign-up required.