OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

CAT $1000.00 Call

CAT280121C01000000

Latest saved OI208Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAT $1000.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2081040 2026-10-02: 192 OI2026-10-05: 193 OI2026-10-06: 193 OI2026-10-07: 196 OI2026-10-08: 196 OI2026-10-09: 196 OI2026-10-13: 203 OI2026-10-14: 203 OI2026-10-15: 205 OI2026-10-16: 205 OI2026-10-21: 206 OI2026-10-23: 208 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, 2026Viewing208+2
Oct 21, 2026206+1
Oct 16, 20262050
Oct 15, 2026205+2
Oct 14, 20262030
Oct 13, 2026203+7
Oct 09, 20261960
Oct 08, 20261960
Oct 07, 2026196+3
Oct 06, 20261930
Oct 05, 2026193+1
Oct 02, 2026192No prior observation