PolyHistorical vs Binance Historical Data Exports
Comparing PolyHistorical order book snapshots with Binance historical data downloads for trading research.
Overview
Binance provides historical market data through its data portal including kline/candlestick data, aggregate trades, and order book snapshots for spot and futures markets. PolyHistorical provides Polymarket prediction market order book history with sub-second granularity — a completely different asset class.
Data Comparison
| Feature | PolyHistorical | Binance Historical Data |
|---|---|---|
| Asset Type | Prediction market contracts | Spot & futures crypto pairs |
| Order Book History | ✓ 300ms snapshots, full depth | ✓ Daily snapshots only |
| Delivery Format | REST API (JSON) | Bulk CSV downloads |
| Real-Time Streaming | Coming soon | ✓ WebSocket feeds |
| Prediction Markets | ✓ BTC/ETH/SOL Up/Down | ✗ Not available |
| Cost | Free tier + $11/mo Pro | Free (exchange data only) |
Order Book Granularity
This is where the biggest difference lies. Binance provides daily order book snapshots in their historical data portal — useful for broad analysis but too coarse for intraday strategy development. PolyHistorical captures order book state every 500 milliseconds, letting you reconstruct exactly how the Polymarket order book evolved throughout the day.
Why Granularity Matters for Backtesting
- Daily snapshots miss intraday liquidity dynamics and flash crashes
- Sub-second snapshots let you simulate realistic fill prices and slippage
- Prediction markets have unique microstructure that requires high-frequency data
- Market events (elections, economic data releases) cause rapid order book changes
Data Access Methods
Binance historical data requires bulk CSV downloads from their data portal, which can be hundreds of gigabytes for order book data. PolyHistorical offers a clean REST API where you query specific markets and time ranges, getting JSON responses you can immediately process in Python, JavaScript, or any language.
Complementary Use
Many quantitative traders use both data sources together. Binance spot/futures data provides the underlying asset price, while PolyHistorical provides the prediction market order book. This combination enables powerful cross-market analysis — for example, tracking how Polymarket BTC Up/Down order books react to BTC price movements on Binance.
Bottom Line
Binance historical data covers traditional crypto exchange trading. PolyHistorical covers prediction market order books. If you are researching or trading Polymarket markets, PolyHistorical provides data that Binance simply does not have.