OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

CAT $780.00 Put

CAT270319P00780000

Latest saved OI296Oct 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 $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. 2991490 2026-10-02: 226 OI2026-10-05: 226 OI2026-10-06: 222 OI2026-10-07: 228 OI2026-10-08: 228 OI2026-10-09: 236 OI2026-10-13: 278 OI2026-10-14: 278 OI2026-10-15: 278 OI2026-10-16: 299 OI2026-10-21: 296 OI2026-10-23: 296 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, 2026Viewing2960
Oct 21, 2026296-3
Oct 16, 2026299+21
Oct 15, 20262780
Oct 14, 20262780
Oct 13, 2026278+42
Oct 09, 2026236+8
Oct 08, 20262280
Oct 07, 2026228+6
Oct 06, 2026222-4
Oct 05, 20262260
Oct 02, 2026226No prior observation