> ## Documentation Index > Fetch the complete documentation index at: https://docs.hypedexer.com/llms.txt > Use this file to discover all available pages before exploring further. # Spread statistics > Spread distribution over a window (median, p10, p90, mean), data coverage and the hour of day (UTC) with the tightest spread. Available for April 2024 to February 2026 (archive of every top-of-book update); not yet extended past February 2026. ## OpenAPI ````yaml /api-reference/openapi.json get /market/spread/{coin} openapi: 3.0.3 info: title: 'Hypedexer API: Indexed Data' version: 1.0.0 description: >- API to query indexed Hyperliquid trading data. This API provides access to stored/indexed trading data: - **Fills**: Executed orders and fills (Spot-only or All = Spot + Perp) - **Analytics**: Aggregations and statistics based on indexed data - **Completed Trades**: Trade objects and their related fills - **Users**: User overviews, performance and activity - **Social Trading**: Per-trader equity curve, PnL calendar, account leverage and top trades - **Funding**: Funding rate history, user funding payments, predicted rates - **Liquidations**: Liquidation events with filters - **Overview**: Market dashboard metrics (volume, fees, traders, PnL) - **Spot**: Spot token metadata, pairs, and auctions - **TWAPs**: TWAP orders, execution stats and fills - **Vaults**: Vault details, summaries, equity, ledger > Note: No live streaming. Responses are computed from indexed data. servers: - url: https://api.hypedexer.com description: Production, routed to the nearest region (EU or JP) security: - ApiKeyAuth: [] tags: - name: Fills description: Fills endpoints. - name: Analytics description: Aggregations and stats. - name: Completed Trades description: Trades and fills. - name: Users description: User profiles. - name: Funding description: Funding rates and payments (HL-compatible). - name: Liquidations description: Liquidation events. - name: Overview description: Market dashboard metrics. - name: Spot description: Spot token metadata, pairs and auctions. - name: TWAPs description: TWAP orders, stats and fills. - name: Vaults description: Vault details, summaries, equity and ledger. - name: Social Trading description: >- Per-trader equity, PnL calendar, performance, account leverage and top trades. - name: Market history description: >- Historical Hyperliquid market microstructure: best bid/offer aggregates and spread statistics (April 2024 to February 2026), and the order book reconstructed minute by minute: April 2024 to February 2026 from our archive (top ~20 levels per side) and, since 23 September 2026, the full order book replayed from our own node. Served from the EU region. paths: /market/spread/{coin}: get: tags: - Market history summary: Spread statistics description: >- Spread distribution over a window (median, p10, p90, mean), data coverage and the hour of day (UTC) with the tightest spread. Available for April 2024 to February 2026 (archive of every top-of-book update); not yet extended past February 2026. parameters: - name: coin in: path description: Coin symbol (e.g. BTC, @107 for a spot pair, xyz:TSLA for HIP-3) schema: type: string required: true - name: start_time in: query description: Start time (ISO UTC) schema: type: string format: date-time required: true - name: end_time in: query description: End time (ISO UTC); default = start + 30 days schema: type: string format: date-time responses: '200': description: OK content: application/json: schema: type: object example: success: true message: Spread statistics for BTC data: coin: BTC start_time: '2025-12-01T00:00:00Z' end_time: '2026-01-01T00:00:00Z' coverage_pct: 99.77 minutes_with_data: 44536 spread_bps_median: 0.1435 spread_bps_p10: 0.1145 spread_bps_p90: 0.2023 spread_bps_avg: 0.1555 spread_bps_max: 2.2621 mid_avg: 89000.230667 updates: 225302610 tightest_hour_utc: 7 widest_hour_utc: 15 by_hour_utc: - hour_utc: 0 spread_bps_avg: 0.1723 updates: 9095092 - hour_utc: 1 spread_bps_avg: 0.1623 updates: 9465540 - hour_utc: 2 spread_bps_avg: 0.1682 updates: 9635044 - hour_utc: 3 spread_bps_avg: 0.1606 updates: 8464076 - hour_utc: 4 spread_bps_avg: 0.1535 updates: 7294841 - hour_utc: 5 spread_bps_avg: 0.1519 updates: 6826738 - hour_utc: 6 spread_bps_avg: 0.1515 updates: 6486111 - hour_utc: 7 spread_bps_avg: 0.1506 updates: 6891036 - hour_utc: 8 spread_bps_avg: 0.1531 updates: 7699446 - hour_utc: 9 spread_bps_avg: 0.1528 updates: 7455441 - hour_utc: 10 spread_bps_avg: 0.1538 updates: 7366684 - hour_utc: 11 spread_bps_avg: 0.1523 updates: 7233631 - hour_utc: 12 spread_bps_avg: 0.1555 updates: 8030840 - hour_utc: 13 spread_bps_avg: 0.1717 updates: 10109865 - hour_utc: 14 spread_bps_avg: 0.2006 updates: 14210434 - hour_utc: 15 spread_bps_avg: 0.202 updates: 15470247 - hour_utc: 16 spread_bps_avg: 0.1813 updates: 14199150 - hour_utc: 17 spread_bps_avg: 0.1779 updates: 12584367 - hour_utc: 18 spread_bps_avg: 0.1704 updates: 11308041 - hour_utc: 19 spread_bps_avg: 0.1773 updates: 10909983 - hour_utc: 20 spread_bps_avg: 0.175 updates: 10588394 - hour_utc: 21 spread_bps_avg: 0.1652 updates: 8184223 - hour_utc: 22 spread_bps_avg: 0.1707 updates: 7742191 - hour_utc: 23 spread_bps_avg: 0.1584 updates: 8051195 total_count: null execution_time_ms: 368.45 next_cursor: null has_more: null '400': description: >- Invalid window or parameter (for example a window larger than the interval allows) components: securitySchemes: ApiKeyAuth: type: apiKey in: header name: X-API-Key description: >- Your Hypedexer API key. Create one in the console at https://app.hypedexer.com. `Authorization: Bearer ` and the `api_key` query parameter are accepted as well. ````