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Contract OI history

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Jan 15, 2027 EXPIRATION

BKR $40.00 Put

BKR270115P00040000

Latest saved OI1,991Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
BKR $40.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 1,9919950 2026-10-09: 1,990 OI2026-10-13: 1,990 OI2026-10-14: 1,990 OI2026-10-15: 1,990 OI2026-10-16: 1,991 OI2026-10-21: 1,991 OI2026-10-23: 1,991 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BKR contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,9910
Oct 21, 20261,9910
Oct 16, 20261,991+1
Oct 15, 20261,9900
Oct 14, 20261,9900
Oct 13, 20261,9900
Oct 09, 20261,990No prior observation