OITracker Cboe delayed data

Contract OI history

Back to CAT

Nov 20, 2026 EXPIRATION

CAT $800.00 Put

CAT261120P00800000

Latest saved OI733Oct 23, 2026
Last change-4vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAT $800.00 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. 8314150 2026-10-02: 654 OI2026-10-05: 654 OI2026-10-06: 683 OI2026-10-07: 684 OI2026-10-08: 684 OI2026-10-09: 831 OI2026-10-13: 784 OI2026-10-14: 784 OI2026-10-15: 772 OI2026-10-16: 752 OI2026-10-21: 737 OI2026-10-23: 733 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, 2026Viewing733-4
Oct 21, 2026737-15
Oct 16, 2026752-20
Oct 15, 2026772-12
Oct 14, 20267840
Oct 13, 2026784-47
Oct 09, 2026831+147
Oct 08, 20266840
Oct 07, 2026684+1
Oct 06, 2026683+29
Oct 05, 20266540
Oct 02, 2026654No prior observation