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Contract OI history

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Nov 20, 2026 EXPIRATION

BAC $40.00 Put

BAC261120P00040000

Latest saved OI2,453Oct 23, 2026
Last change+2vs 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. 2,4591,2290 2026-10-02: 2,339 OI2026-10-05: 2,359 OI2026-10-06: 2,410 OI2026-10-07: 2,420 OI2026-10-08: 2,420 OI2026-10-09: 2,437 OI2026-10-13: 2,437 OI2026-10-14: 2,437 OI2026-10-15: 2,459 OI2026-10-16: 2,434 OI2026-10-21: 2,451 OI2026-10-23: 2,453 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, 2026Viewing2,453+2
Oct 21, 20262,451+17
Oct 16, 20262,434-25
Oct 15, 20262,459+22
Oct 14, 20262,4370
Oct 13, 20262,4370
Oct 09, 20262,437+17
Oct 08, 20262,4200
Oct 07, 20262,420+10
Oct 06, 20262,410+51
Oct 05, 20262,359+20
Oct 02, 20262,339No prior observation