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An update in our notional value calculations has resulted in a change to our historical data for open interest metrics. The following data has been corrected and can now be backfilled as needed:
-Metric: All Reported Open Interest Option Metrics (open_interest_reported_option_*) -Time Range of Impact: 2025-05-14 to 2025-10-16 -Frequencies Impacted: 1h
Posted Oct 28, 2025 - 14:05 UTC
This incident affected: Data Change Notifications (Market Data Feed Changes).