OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

CAT $420.00 Put

CAT270115P00420000

Latest saved OI428Oct 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 $420.00 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. 4292140 2026-10-02: 429 OI2026-10-05: 429 OI2026-10-06: 429 OI2026-10-07: 429 OI2026-10-08: 429 OI2026-10-09: 429 OI2026-10-13: 429 OI2026-10-14: 429 OI2026-10-15: 429 OI2026-10-16: 429 OI2026-10-21: 429 OI2026-10-23: 428 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, 2026Viewing428-1
Oct 21, 20264290
Oct 16, 20264290
Oct 15, 20264290
Oct 14, 20264290
Oct 13, 20264290
Oct 09, 20264290
Oct 08, 20264290
Oct 07, 20264290
Oct 06, 20264290
Oct 05, 20264290
Oct 02, 2026429No prior observation