OITracker Cboe delayed data

Contract OI history

Back to CAT

Oct 30, 2026 EXPIRATION

CAT $510.00 Put

CAT261030P00510000

Latest saved OI243Oct 23, 2026
Last change+3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAT $510.00 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. 2491240 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 3 OI2026-10-07: 7 OI2026-10-08: 7 OI2026-10-09: 8 OI2026-10-13: 98 OI2026-10-14: 98 OI2026-10-15: 249 OI2026-10-16: 247 OI2026-10-21: 240 OI2026-10-23: 243 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, 2026Viewing243+3
Oct 21, 2026240-7
Oct 16, 2026247-2
Oct 15, 2026249+151
Oct 14, 2026980
Oct 13, 202698+90
Oct 09, 20268+1
Oct 08, 202670
Oct 07, 20267+4
Oct 06, 20263+3
Oct 05, 202600
Oct 02, 20260No prior observation