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Contract OI history

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Nov 20, 2026 EXPIRATION

B $43.00 Put

B261120P00043000

Latest saved OI125Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $43.00 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. 127630 2026-10-02: 57 OI2026-10-05: 61 OI2026-10-06: 61 OI2026-10-07: 61 OI2026-10-08: 61 OI2026-10-09: 123 OI2026-10-13: 127 OI2026-10-14: 127 OI2026-10-15: 127 OI2026-10-16: 127 OI2026-10-21: 126 OI2026-10-23: 125 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, 2026Viewing125-1
Oct 21, 2026126-1
Oct 16, 20261270
Oct 15, 20261270
Oct 14, 20261270
Oct 13, 2026127+4
Oct 09, 2026123+62
Oct 08, 2026610
Oct 07, 2026610
Oct 06, 2026610
Oct 05, 202661+4
Oct 02, 202657No prior observation