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Contract OI history

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Oct 23, 2026 EXPIRATION

CAT $530.00 Put

CAT261023P00530000

Latest saved OI76Oct 23, 2026
Last change+13vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAT $530.00 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. 76380 2026-10-02: 25 OI2026-10-05: 27 OI2026-10-06: 29 OI2026-10-07: 29 OI2026-10-08: 29 OI2026-10-09: 29 OI2026-10-13: 29 OI2026-10-14: 29 OI2026-10-15: 29 OI2026-10-16: 29 OI2026-10-21: 63 OI2026-10-23: 76 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, 2026Viewing76+13
Oct 21, 202663+34
Oct 16, 2026290
Oct 15, 2026290
Oct 14, 2026290
Oct 13, 2026290
Oct 09, 2026290
Oct 08, 2026290
Oct 07, 2026290
Oct 06, 202629+2
Oct 05, 202627+2
Oct 02, 202625No prior observation