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Contract OI history

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Nov 20, 2026 EXPIRATION

CAT $600.00 Put

CAT261120P00600000

Latest saved OI791Oct 23, 2026
Last change+1vs 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. 8094040 2026-10-02: 771 OI2026-10-05: 768 OI2026-10-06: 786 OI2026-10-07: 785 OI2026-10-08: 785 OI2026-10-09: 795 OI2026-10-13: 801 OI2026-10-14: 801 OI2026-10-15: 809 OI2026-10-16: 798 OI2026-10-21: 790 OI2026-10-23: 791 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, 2026Viewing791+1
Oct 21, 2026790-8
Oct 16, 2026798-11
Oct 15, 2026809+8
Oct 14, 20268010
Oct 13, 2026801+6
Oct 09, 2026795+10
Oct 08, 20267850
Oct 07, 2026785-1
Oct 06, 2026786+18
Oct 05, 2026768-3
Oct 02, 2026771No prior observation