OITracker Cboe delayed data

Contract OI history

Back to CAT

Oct 23, 2026 EXPIRATION

CAT $525.00 Put

CAT261023P00525000

Latest saved OI111Oct 23, 2026
Last change+5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAT $525.00 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. 118590 2026-10-02: 56 OI2026-10-05: 57 OI2026-10-06: 118 OI2026-10-07: 103 OI2026-10-08: 103 OI2026-10-09: 105 OI2026-10-13: 106 OI2026-10-14: 106 OI2026-10-15: 106 OI2026-10-16: 106 OI2026-10-21: 106 OI2026-10-23: 111 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, 2026Viewing111+5
Oct 21, 20261060
Oct 16, 20261060
Oct 15, 20261060
Oct 14, 20261060
Oct 13, 2026106+1
Oct 09, 2026105+2
Oct 08, 20261030
Oct 07, 2026103-15
Oct 06, 2026118+61
Oct 05, 202657+1
Oct 02, 202656No prior observation