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Contract OI history

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Jan 21, 2028 EXPIRATION

COF $210.00 Put

COF280121P00210000

Latest saved OI133Oct 23, 2026
Last change+31vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COF $210.00 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. 133660 2026-10-02: 61 OI2026-10-05: 62 OI2026-10-06: 63 OI2026-10-07: 63 OI2026-10-08: 63 OI2026-10-09: 65 OI2026-10-13: 66 OI2026-10-14: 66 OI2026-10-15: 66 OI2026-10-16: 66 OI2026-10-21: 102 OI2026-10-23: 133 OI Oct 02, 2026Oct 23, 2026

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

COF contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing133+31
Oct 21, 2026102+36
Oct 16, 2026660
Oct 15, 2026660
Oct 14, 2026660
Oct 13, 202666+1
Oct 09, 202665+2
Oct 08, 2026630
Oct 07, 2026630
Oct 06, 202663+1
Oct 05, 202662+1
Oct 02, 202661No prior observation