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Contract OI history

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Sep 17, 2027 EXPIRATION

BAC $37.50 Put

BAC270917P00037500

Latest saved OI1,115Oct 23, 2026
Last change+813vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BAC $37.50 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. 1,1155570 2026-10-02: 0 OI2026-10-05: 13 OI2026-10-06: 17 OI2026-10-07: 17 OI2026-10-08: 17 OI2026-10-09: 23 OI2026-10-13: 23 OI2026-10-14: 23 OI2026-10-15: 24 OI2026-10-16: 24 OI2026-10-21: 302 OI2026-10-23: 1,115 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, 2026Viewing1,115+813
Oct 21, 2026302+278
Oct 16, 2026240
Oct 15, 202624+1
Oct 14, 2026230
Oct 13, 2026230
Oct 09, 202623+6
Oct 08, 2026170
Oct 07, 2026170
Oct 06, 202617+4
Oct 05, 202613+13
Oct 02, 20260No prior observation