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Contract OI history

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Nov 20, 2026 EXPIRATION

CB $325.00 Put

CB261120P00325000

Latest saved OI168Oct 23, 2026
Last change+14vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CB $325.00 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. 168840 2026-10-02: 60 OI2026-10-05: 64 OI2026-10-06: 65 OI2026-10-07: 68 OI2026-10-08: 71 OI2026-10-09: 77 OI2026-10-13: 78 OI2026-10-14: 86 OI2026-10-15: 95 OI2026-10-16: 98 OI2026-10-21: 154 OI2026-10-23: 168 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

CB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing168+14
Oct 21, 2026154+56
Oct 16, 202698+3
Oct 15, 202695+9
Oct 14, 202686+8
Oct 13, 202678+1
Oct 09, 202677+6
Oct 08, 202671+3
Oct 07, 202668+3
Oct 06, 202665+1
Oct 05, 202664+4
Oct 02, 202660No prior observation