OITracker Cboe delayed data

Contract OI history

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Dec 17, 2027 EXPIRATION

CAT $720.00 Put

CAT271217P00720000

Latest saved OI156Oct 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
CAT $720.00 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. 156780 2026-10-02: 74 OI2026-10-05: 74 OI2026-10-06: 73 OI2026-10-07: 85 OI2026-10-08: 85 OI2026-10-09: 121 OI2026-10-13: 120 OI2026-10-14: 120 OI2026-10-15: 120 OI2026-10-16: 120 OI2026-10-21: 155 OI2026-10-23: 156 OI Oct 02, 2026Oct 23, 2026

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

CAT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing156+1
Oct 21, 2026155+35
Oct 16, 20261200
Oct 15, 20261200
Oct 14, 20261200
Oct 13, 2026120-1
Oct 09, 2026121+36
Oct 08, 2026850
Oct 07, 202685+12
Oct 06, 202673-1
Oct 05, 2026740
Oct 02, 202674No prior observation