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Contract OI history

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Jan 21, 2028 EXPIRATION

BAC $42.50 Put

BAC280121P00042500

Latest saved OI2,136Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BAC $42.50 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. 2,1361,0680 2026-10-02: 61 OI2026-10-05: 661 OI2026-10-06: 661 OI2026-10-07: 662 OI2026-10-08: 662 OI2026-10-09: 671 OI2026-10-13: 670 OI2026-10-14: 670 OI2026-10-15: 670 OI2026-10-16: 670 OI2026-10-21: 2,136 OI2026-10-23: 2,136 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, 2026Viewing2,1360
Oct 21, 20262,136+1,466
Oct 16, 20266700
Oct 15, 20266700
Oct 14, 20266700
Oct 13, 2026670-1
Oct 09, 2026671+9
Oct 08, 20266620
Oct 07, 2026662+1
Oct 06, 20266610
Oct 05, 2026661+600
Oct 02, 202661No prior observation