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Contract OI history

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Mar 19, 2027 EXPIRATION

COF $135.00 Put

COF270319P00135000

Latest saved OI392Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COF $135.00 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. 3921960 2026-10-02: 168 OI2026-10-05: 184 OI2026-10-06: 389 OI2026-10-07: 389 OI2026-10-08: 389 OI2026-10-09: 392 OI2026-10-13: 392 OI2026-10-14: 392 OI2026-10-15: 392 OI2026-10-16: 392 OI2026-10-21: 392 OI2026-10-23: 392 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, 2026Viewing3920
Oct 21, 20263920
Oct 16, 20263920
Oct 15, 20263920
Oct 14, 20263920
Oct 13, 20263920
Oct 09, 2026392+3
Oct 08, 20263890
Oct 07, 20263890
Oct 06, 2026389+205
Oct 05, 2026184+16
Oct 02, 2026168No prior observation