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Contract OI history

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Jun 17, 2027 EXPIRATION

CAT $600.00 Put

CAT270617P00600000

Latest saved OI590Oct 23, 2026
Last change+6vs 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. 5922960 2026-10-02: 583 OI2026-10-05: 583 OI2026-10-06: 586 OI2026-10-07: 592 OI2026-10-08: 592 OI2026-10-09: 582 OI2026-10-13: 583 OI2026-10-14: 583 OI2026-10-15: 583 OI2026-10-16: 583 OI2026-10-21: 584 OI2026-10-23: 590 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, 2026Viewing590+6
Oct 21, 2026584+1
Oct 16, 20265830
Oct 15, 20265830
Oct 14, 20265830
Oct 13, 2026583+1
Oct 09, 2026582-10
Oct 08, 20265920
Oct 07, 2026592+6
Oct 06, 2026586+3
Oct 05, 20265830
Oct 02, 2026583No prior observation