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Contract OI history

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Nov 20, 2026 EXPIRATION

CB $310.00 Put

CB261120P00310000

Latest saved OI199Oct 23, 2026
Last change-9vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CB $310.00 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. 2081040 2026-10-02: 128 OI2026-10-05: 149 OI2026-10-06: 147 OI2026-10-07: 147 OI2026-10-08: 148 OI2026-10-09: 196 OI2026-10-13: 196 OI2026-10-14: 201 OI2026-10-15: 201 OI2026-10-16: 201 OI2026-10-21: 208 OI2026-10-23: 199 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, 2026Viewing199-9
Oct 21, 2026208+7
Oct 16, 20262010
Oct 15, 20262010
Oct 14, 2026201+5
Oct 13, 20261960
Oct 09, 2026196+48
Oct 08, 2026148+1
Oct 07, 20261470
Oct 06, 2026147-2
Oct 05, 2026149+21
Oct 02, 2026128No prior observation