Frequently asked questions
Everything about the data, the recording process and how delivery works. Formats are documented in detail in the data format docs.
- What are Polymarket Up/Down markets?
- Short-horizon binary prediction markets on Polymarket that ask one question: will the price of BTC (or ETH) be higher or lower at the end of the round than at the start? Rounds run every 5 minutes (and historically 15 minutes), with Up and Down shares trading between $0.00 and $1.00 until resolution.
- How is the data recorded?
- A dedicated recorder polls the public Polymarket CLOB API roughly every 1.5–2 seconds for the full lifetime of each market round. Each round is saved as its own file named by the round's closing unix timestamp. Recording has run continuously since February 2026.
- What is in each price CSV?
- Five columns: timestamp (unix, sub-second precision), datetime (human-readable, UTC+8 as recorded), up_price, down_price, and remaining_minutes until the round resolves. A typical 5-minute round contains 150–200 ticks.
- What is in the orderbook JSONL files?
- One JSON object per line, each a full depth snapshot: timestamp, remaining_minutes, and complete bid/ask ladders (every price level and size) for both the Up and Down outcome tokens.
- Are timestamps UTC?
- The unix timestamp column is timezone-independent and authoritative — use it for all analysis. The human-readable datetime string was written in the recorder's local timezone (UTC+8). All dates on this site group rounds by UTC day.
- Are there gaps in the data?
- Occasionally, yes — network hiccups or recorder restarts can shorten or drop individual rounds. Files with fewer than ten ticks are excluded from the statistics on this site but day pages always show the exact number of rounds captured.
- Can I try before buying?
- Yes. Every dataset page has a free sample covering a full trading day, downloadable instantly without sign-up. The free samples are also ideal for validating your parsing pipeline before purchasing.
- How do I buy the full archive?
- One-time payment of $15 in USDT (TRC20) on the pricing page. The download link is issued once the transfer is detected and stays valid for 48 hours — if it does not arrive within a few minutes, message Telegram @shangrila29 with your TX hash.
- What can I use the data for?
- Backtesting trading strategies, machine-learning research, market-microstructure analysis, academic study of prediction markets, and similar research purposes. The data is historical market information only — nothing on this site is financial advice.
- Is PredictionTicks affiliated with Polymarket?
- No. PredictionTicks is an independent archive of publicly observable market data and has no affiliation with Polymarket.