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Contract OI history

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Dec 18, 2026 EXPIRATION

CMI $500.00 Put

CMI261218P00500000

Latest saved OI330Oct 23, 2026
Last change-264vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CMI $500.00 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. 5942970 2026-10-02: 169 OI2026-10-05: 169 OI2026-10-06: 169 OI2026-10-07: 182 OI2026-10-08: 182 OI2026-10-09: 182 OI2026-10-13: 321 OI2026-10-14: 321 OI2026-10-15: 553 OI2026-10-16: 553 OI2026-10-21: 594 OI2026-10-23: 330 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

CMI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing330-264
Oct 21, 2026594+41
Oct 16, 20265530
Oct 15, 2026553+232
Oct 14, 20263210
Oct 13, 2026321+139
Oct 09, 20261820
Oct 08, 20261820
Oct 07, 2026182+13
Oct 06, 20261690
Oct 05, 20261690
Oct 02, 2026169No prior observation