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Contract OI history

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Dec 18, 2026 EXPIRATION

COF $230.00 Call

COF261218C00230000

Latest saved OI2,541Oct 23, 2026
Last change+74vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
COF $230.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2,5411,2700 2026-10-02: 945 OI2026-10-05: 950 OI2026-10-06: 951 OI2026-10-07: 948 OI2026-10-08: 948 OI2026-10-09: 955 OI2026-10-13: 2,455 OI2026-10-14: 2,455 OI2026-10-15: 2,457 OI2026-10-16: 2,463 OI2026-10-21: 2,467 OI2026-10-23: 2,541 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, 2026Viewing2,541+74
Oct 21, 20262,467+4
Oct 16, 20262,463+6
Oct 15, 20262,457+2
Oct 14, 20262,4550
Oct 13, 20262,455+1,500
Oct 09, 2026955+7
Oct 08, 20269480
Oct 07, 2026948-3
Oct 06, 2026951+1
Oct 05, 2026950+5
Oct 02, 2026945No prior observation