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 2026-08-26: the Up share swung 99¢ and the lead flipped 6 times before resolving UP.
| timestamp | time (UTC) | up_price | down_price | remaining_min |
|---|---|---|---|---|
| 1787709601 | 02:00:00 | 0.57 | 0.44 | 4.99 |
| 1787709633 | 02:00:32 | 0.66 | 0.35 | 4.45 |
| 1787709662 | 02:01:01 | 0.59 | 0.42 | 3.97 |
| 1787709691 | 02:01:30 | 0.50 | 0.51 | 3.48 |
| 1787709719 | 02:01:59 | 0.90 | 0.11 | 3.01 |
| 1787709747 | 02:02:27 | 0.91 | 0.10 | 2.54 |
| 1787709776 | 02:02:55 | 0.83 | 0.18 | 2.07 |
| 1787709804 | 02:03:24 | 0.69 | 0.32 | 1.60 |
| 1787709833 | 02:03:52 | 0.77 | 0.24 | 1.12 |
| 1787709862 | 02:04:21 | 0.06 | 0.95 | 0.64 |
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 94,759 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.