OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

CAT $780.00 Put

CAT280121P00780000

Latest saved OI145Oct 23, 2026
Last change+7vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAT $780.00 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. 145720 2026-10-02: 136 OI2026-10-05: 136 OI2026-10-06: 135 OI2026-10-07: 135 OI2026-10-08: 135 OI2026-10-09: 137 OI2026-10-13: 137 OI2026-10-14: 137 OI2026-10-15: 137 OI2026-10-16: 138 OI2026-10-21: 138 OI2026-10-23: 145 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, 2026Viewing145+7
Oct 21, 20261380
Oct 16, 2026138+1
Oct 15, 20261370
Oct 14, 20261370
Oct 13, 20261370
Oct 09, 2026137+2
Oct 08, 20261350
Oct 07, 20261350
Oct 06, 2026135-1
Oct 05, 20261360
Oct 02, 2026136No prior observation