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Contract OI history

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Dec 18, 2026 EXPIRATION

BAC $41.00 Put

BAC261218P00041000

Latest saved OI557Oct 23, 2026
Last change+22vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BAC $41.00 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. 5572780 2026-10-02: 148 OI2026-10-05: 148 OI2026-10-06: 148 OI2026-10-07: 148 OI2026-10-08: 148 OI2026-10-09: 148 OI2026-10-13: 149 OI2026-10-14: 149 OI2026-10-15: 227 OI2026-10-16: 227 OI2026-10-21: 535 OI2026-10-23: 557 OI Oct 02, 2026Oct 23, 2026

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

BAC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing557+22
Oct 21, 2026535+308
Oct 16, 20262270
Oct 15, 2026227+78
Oct 14, 20261490
Oct 13, 2026149+1
Oct 09, 20261480
Oct 08, 20261480
Oct 07, 20261480
Oct 06, 20261480
Oct 05, 20261480
Oct 02, 2026148No prior observation