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Contract OI history

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Dec 17, 2027 EXPIRATION

BAC $40.00 Put

BAC271217P00040000

Latest saved OI839Oct 23, 2026
Last change+143vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BAC $40.00 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. 8394190 2026-10-02: 564 OI2026-10-05: 564 OI2026-10-06: 556 OI2026-10-07: 556 OI2026-10-08: 556 OI2026-10-09: 556 OI2026-10-13: 361 OI2026-10-14: 361 OI2026-10-15: 425 OI2026-10-16: 445 OI2026-10-21: 696 OI2026-10-23: 839 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, 2026Viewing839+143
Oct 21, 2026696+251
Oct 16, 2026445+20
Oct 15, 2026425+64
Oct 14, 20263610
Oct 13, 2026361-195
Oct 09, 20265560
Oct 08, 20265560
Oct 07, 20265560
Oct 06, 2026556-8
Oct 05, 20265640
Oct 02, 2026564No prior observation