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Contract OI history

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Sep 17, 2027 EXPIRATION

COF $200.00 Put

COF270917P00200000

Latest saved OI271Oct 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 $200.00 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. 2741370 2026-10-02: 67 OI2026-10-05: 71 OI2026-10-06: 72 OI2026-10-07: 112 OI2026-10-08: 112 OI2026-10-09: 114 OI2026-10-13: 244 OI2026-10-14: 244 OI2026-10-15: 248 OI2026-10-16: 274 OI2026-10-21: 271 OI2026-10-23: 271 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, 2026Viewing2710
Oct 21, 2026271-3
Oct 16, 2026274+26
Oct 15, 2026248+4
Oct 14, 20262440
Oct 13, 2026244+130
Oct 09, 2026114+2
Oct 08, 20261120
Oct 07, 2026112+40
Oct 06, 202672+1
Oct 05, 202671+4
Oct 02, 202667No prior observation