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Contract OI history

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Jan 21, 2028 EXPIRATION

BAC $37.50 Put

BAC280121P00037500

Latest saved OI1,742Oct 23, 2026
Last change+21vs 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. 1,7428710 2026-10-02: 1 OI2026-10-05: 1 OI2026-10-06: 1 OI2026-10-07: 901 OI2026-10-08: 901 OI2026-10-09: 901 OI2026-10-13: 901 OI2026-10-14: 901 OI2026-10-15: 923 OI2026-10-16: 1,721 OI2026-10-21: 1,721 OI2026-10-23: 1,742 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, 2026Viewing1,742+21
Oct 21, 20261,7210
Oct 16, 20261,721+798
Oct 15, 2026923+22
Oct 14, 20269010
Oct 13, 20269010
Oct 09, 20269010
Oct 08, 20269010
Oct 07, 2026901+900
Oct 06, 202610
Oct 05, 202610
Oct 02, 20261No prior observation