OITracker Cboe delayed data

Contract OI history

Back to CAT

Sep 17, 2027 EXPIRATION

CAT $410.00 Put

CAT270917P00410000

Latest saved OI78Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAT $410.00 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. 78390 2026-10-02: 23 OI2026-10-05: 23 OI2026-10-06: 30 OI2026-10-07: 33 OI2026-10-08: 33 OI2026-10-09: 33 OI2026-10-13: 34 OI2026-10-14: 34 OI2026-10-15: 34 OI2026-10-16: 78 OI2026-10-21: 78 OI2026-10-23: 78 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, 2026Viewing780
Oct 21, 2026780
Oct 16, 202678+44
Oct 15, 2026340
Oct 14, 2026340
Oct 13, 202634+1
Oct 09, 2026330
Oct 08, 2026330
Oct 07, 202633+3
Oct 06, 202630+7
Oct 05, 2026230
Oct 02, 202623No prior observation