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Contract OI history

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Jan 19, 2029 EXPIRATION

CAT $520.00 Put

CAT290119P00520000

Latest saved OI138Oct 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 $520.00 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. 138690 2026-10-02: 14 OI2026-10-05: 14 OI2026-10-06: 14 OI2026-10-07: 14 OI2026-10-08: 14 OI2026-10-09: 115 OI2026-10-13: 115 OI2026-10-14: 115 OI2026-10-15: 115 OI2026-10-16: 115 OI2026-10-21: 138 OI2026-10-23: 138 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, 2026Viewing1380
Oct 21, 2026138+23
Oct 16, 20261150
Oct 15, 20261150
Oct 14, 20261150
Oct 13, 20261150
Oct 09, 2026115+101
Oct 08, 2026140
Oct 07, 2026140
Oct 06, 2026140
Oct 05, 2026140
Oct 02, 202614No prior observation