90-Day BTC 4h Polymarket Order Book History
Access 90-day BTC 4h Polymarket order book history with UP and DOWN bids, asks, depth, spreads, and resolved outcomes.
90-day BTC 4h Polymarket order book history gives traders and researchers a rolling multi-month sample of Bitcoin Up/Down markets. PolyHistorical captures full-depth order book snapshots at 300ms granularity, so order book analysis can account for spread, liquidity, and the prices that were available at each point in a market.
A complete 90-day calendar window can contain up to roughly 540 scheduled 4h windows before launch dates, feed gaps, or unavailable markets are considered. Always measure the returned coverage instead of assuming every possible window exists.
Why Use a 90-Day Window?
Four-hour BTC contracts support swing-window research and tests that need more market lifecycle context than intraday expiries. A 90-day lookback is long enough to compare multiple volatility and liquidity regimes while remaining practical for rolling research and repeated model validation.
What Is Preserved in the Order Book
The 90-day history keeps the price ladder rather than reducing each BTC 4h market to a midpoint. That distinction matters whenever a study depends on executable prices or available size.
- UP and DOWN bids and asks at every captured depth level
- Top-of-book spread and depth available behind the best quote
- Timestamped snapshots that can be replayed in market order
- Resolution metadata for grouping winning and losing outcomes
Quality Checks Before Analysis
Historical depth is only useful when the sample is auditable. Check that timestamps are ordered, both outcome tokens are present, price levels are valid, and market resolution is known. Flag snapshot gaps instead of forward-filling across them, because invented book states can create fills that never existed.
For strategy work, avoid using midpoint as an execution price. A midpoint is descriptive; an order must interact with the bid or ask and may consume several levels when the requested size is larger than top-of-book liquidity.
90 Days vs 120 Days
Choose 90 days when that window matches your subscription, compute budget, or validation schedule. The 120-day BTC 4h order book history page covers the longer alternative. Using both as rolling horizons can show whether a result is stable or overly dependent on the most recent regime.