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Contract OI history

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Nov 20, 2026 EXPIRATION

B $38.00 Put

B261120P00038000

Latest saved OI1,246Oct 23, 2026
Last change+72vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $38.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,2466230 2026-10-02: 788 OI2026-10-05: 806 OI2026-10-06: 806 OI2026-10-07: 807 OI2026-10-08: 817 OI2026-10-09: 817 OI2026-10-13: 831 OI2026-10-14: 832 OI2026-10-15: 1,032 OI2026-10-16: 1,018 OI2026-10-21: 1,174 OI2026-10-23: 1,246 OI Oct 02, 2026Oct 23, 2026

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

B contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,246+72
Oct 21, 20261,174+156
Oct 16, 20261,018-14
Oct 15, 20261,032+200
Oct 14, 2026832+1
Oct 13, 2026831+14
Oct 09, 20268170
Oct 08, 2026817+10
Oct 07, 2026807+1
Oct 06, 20268060
Oct 05, 2026806+18
Oct 02, 2026788No prior observation