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Contract OI history

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Sep 17, 2027 EXPIRATION

COF $210.00 Put

COF270917P00210000

Latest saved OI471Oct 23, 2026
Last change+1vs 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. 4712350 2026-10-02: 157 OI2026-10-05: 158 OI2026-10-06: 159 OI2026-10-07: 159 OI2026-10-08: 159 OI2026-10-09: 184 OI2026-10-13: 331 OI2026-10-14: 331 OI2026-10-15: 331 OI2026-10-16: 400 OI2026-10-21: 470 OI2026-10-23: 471 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, 2026Viewing471+1
Oct 21, 2026470+70
Oct 16, 2026400+69
Oct 15, 20263310
Oct 14, 20263310
Oct 13, 2026331+147
Oct 09, 2026184+25
Oct 08, 20261590
Oct 07, 20261590
Oct 06, 2026159+1
Oct 05, 2026158+1
Oct 02, 2026157No prior observation