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Contract OI history

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Mar 19, 2027 EXPIRATION

BKR $40.00 Put

BKR270319P00040000

Latest saved OI107Oct 23, 2026
Last change+1vs 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. 107530 2026-10-09: 106 OI2026-10-13: 106 OI2026-10-14: 106 OI2026-10-15: 106 OI2026-10-16: 106 OI2026-10-21: 106 OI2026-10-23: 107 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, 2026Viewing107+1
Oct 21, 20261060
Oct 16, 20261060
Oct 15, 20261060
Oct 14, 20261060
Oct 13, 20261060
Oct 09, 2026106No prior observation