OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

CAT $680.00 Put

CAT270319P00680000

Latest saved OI499Oct 23, 2026
Last change+119vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAT $680.00 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. 4992490 2026-10-02: 276 OI2026-10-05: 299 OI2026-10-06: 302 OI2026-10-07: 304 OI2026-10-08: 304 OI2026-10-09: 331 OI2026-10-13: 362 OI2026-10-14: 362 OI2026-10-15: 368 OI2026-10-16: 371 OI2026-10-21: 380 OI2026-10-23: 499 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, 2026Viewing499+119
Oct 21, 2026380+9
Oct 16, 2026371+3
Oct 15, 2026368+6
Oct 14, 20263620
Oct 13, 2026362+31
Oct 09, 2026331+27
Oct 08, 20263040
Oct 07, 2026304+2
Oct 06, 2026302+3
Oct 05, 2026299+23
Oct 02, 2026276No prior observation