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Amounts in Deribit order book and option ticker data were previously reported in contract notional units (e.g., BTC, ETH), not contract units due to Deribit’s native reporting format. This has now been corrected by applying contract size normalization, consistent with the standard across other exchanges. We would share updates when the historical data gets backfilled.
Data Type: - Order Books (HTTP & WebSocket) - Quotes (WebSocket)
Time Range of Impact: Effective from 2026-01-14T00:00:00Z onward.
Posted Jan 14, 2026 - 17:48 UTC
This incident affected: Data Change Notifications (Market Data Feed Changes).