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Contract OI history

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Sep 17, 2027 EXPIRATION

COF $180.00 Put

COF270917P00180000

Latest saved OI59Oct 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 $180.00 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. 59290 2026-10-02: 42 OI2026-10-05: 44 OI2026-10-06: 53 OI2026-10-07: 54 OI2026-10-08: 54 OI2026-10-09: 58 OI2026-10-13: 58 OI2026-10-14: 58 OI2026-10-15: 58 OI2026-10-16: 58 OI2026-10-21: 59 OI2026-10-23: 59 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, 2026Viewing590
Oct 21, 202659+1
Oct 16, 2026580
Oct 15, 2026580
Oct 14, 2026580
Oct 13, 2026580
Oct 09, 202658+4
Oct 08, 2026540
Oct 07, 202654+1
Oct 06, 202653+9
Oct 05, 202644+2
Oct 02, 202642No prior observation