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Contract OI history

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Sep 17, 2027 EXPIRATION

CMI $500.00 Put

CMI270917P00500000

Latest saved OI56Oct 23, 2026
Last change+1vs 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. 56280 2026-10-02: 49 OI2026-10-05: 49 OI2026-10-06: 49 OI2026-10-07: 54 OI2026-10-08: 54 OI2026-10-09: 54 OI2026-10-13: 55 OI2026-10-14: 55 OI2026-10-15: 55 OI2026-10-16: 55 OI2026-10-21: 55 OI2026-10-23: 56 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, 2026Viewing56+1
Oct 21, 2026550
Oct 16, 2026550
Oct 15, 2026550
Oct 14, 2026550
Oct 13, 202655+1
Oct 09, 2026540
Oct 08, 2026540
Oct 07, 202654+5
Oct 06, 2026490
Oct 05, 2026490
Oct 02, 202649No prior observation