OITracker Cboe delayed data

Contract OI history

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Dec 17, 2027 EXPIRATION

CAT $600.00 Put

CAT271217P00600000

Latest saved OI234Oct 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 $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. 2341170 2026-10-02: 120 OI2026-10-05: 120 OI2026-10-06: 120 OI2026-10-07: 220 OI2026-10-08: 220 OI2026-10-09: 221 OI2026-10-13: 225 OI2026-10-14: 225 OI2026-10-15: 226 OI2026-10-16: 228 OI2026-10-21: 234 OI2026-10-23: 234 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, 2026Viewing2340
Oct 21, 2026234+6
Oct 16, 2026228+2
Oct 15, 2026226+1
Oct 14, 20262250
Oct 13, 2026225+4
Oct 09, 2026221+1
Oct 08, 20262200
Oct 07, 2026220+100
Oct 06, 20261200
Oct 05, 20261200
Oct 02, 2026120No prior observation