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Contract OI history

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Sep 17, 2027 EXPIRATION

BAC $40.00 Put

BAC270917P00040000

Latest saved OI7,971Oct 23, 2026
Last change+202vs 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. 7,9713,9850 2026-10-02: 383 OI2026-10-05: 398 OI2026-10-06: 398 OI2026-10-07: 404 OI2026-10-08: 404 OI2026-10-09: 5,632 OI2026-10-13: 6,467 OI2026-10-14: 6,467 OI2026-10-15: 6,471 OI2026-10-16: 6,471 OI2026-10-21: 7,769 OI2026-10-23: 7,971 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, 2026Viewing7,971+202
Oct 21, 20267,769+1,298
Oct 16, 20266,4710
Oct 15, 20266,471+4
Oct 14, 20266,4670
Oct 13, 20266,467+835
Oct 09, 20265,632+5,228
Oct 08, 20264040
Oct 07, 2026404+6
Oct 06, 20263980
Oct 05, 2026398+15
Oct 02, 2026383No prior observation