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Contract OI history

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Dec 18, 2026 EXPIRATION

BAC $40.00 Put

BAC261218P00040000

Latest saved OI7,511Oct 23, 2026
Last change-3vs 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. 7,5143,7570 2026-10-02: 7,034 OI2026-10-05: 7,034 OI2026-10-06: 7,033 OI2026-10-07: 7,033 OI2026-10-08: 7,033 OI2026-10-09: 7,033 OI2026-10-13: 7,033 OI2026-10-14: 7,033 OI2026-10-15: 7,326 OI2026-10-16: 7,329 OI2026-10-21: 7,514 OI2026-10-23: 7,511 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, 2026Viewing7,511-3
Oct 21, 20267,514+185
Oct 16, 20267,329+3
Oct 15, 20267,326+293
Oct 14, 20267,0330
Oct 13, 20267,0330
Oct 09, 20267,0330
Oct 08, 20267,0330
Oct 07, 20267,0330
Oct 06, 20267,033-1
Oct 05, 20267,0340
Oct 02, 20267,034No prior observation