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Contract OI history

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Nov 20, 2026 EXPIRATION

BAC $51.00 Put

BAC261120P00051000

Latest saved OI4,842Oct 23, 2026
Last change+259vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
BAC $51.00 put open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 4,8422,4210 2026-10-21: 4,583 OI2026-10-23: 4,842 OI Oct 21, 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, 2026Viewing4,842+259
Oct 21, 20264,583No prior observation