OITracker Cboe delayed data

Contract OI history

Back to CAT

Feb 19, 2027 EXPIRATION

CAT $600.00 Put

CAT270219P00600000

Latest saved OI125Oct 23, 2026
Last change+14vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAT $600.00 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. 127630 2026-10-02: 122 OI2026-10-05: 123 OI2026-10-06: 123 OI2026-10-07: 127 OI2026-10-08: 127 OI2026-10-09: 127 OI2026-10-13: 127 OI2026-10-14: 127 OI2026-10-15: 125 OI2026-10-16: 125 OI2026-10-21: 111 OI2026-10-23: 125 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, 2026Viewing125+14
Oct 21, 2026111-14
Oct 16, 20261250
Oct 15, 2026125-2
Oct 14, 20261270
Oct 13, 20261270
Oct 09, 20261270
Oct 08, 20261270
Oct 07, 2026127+4
Oct 06, 20261230
Oct 05, 2026123+1
Oct 02, 2026122No prior observation