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Contract OI history

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Dec 18, 2026 EXPIRATION

CAT $600.00 Put

CAT261218P00600000

Latest saved OI614Oct 23, 2026
Last change+24vs 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. 6143070 2026-10-02: 490 OI2026-10-05: 494 OI2026-10-06: 497 OI2026-10-07: 514 OI2026-10-08: 514 OI2026-10-09: 514 OI2026-10-13: 531 OI2026-10-14: 531 OI2026-10-15: 550 OI2026-10-16: 544 OI2026-10-21: 590 OI2026-10-23: 614 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, 2026Viewing614+24
Oct 21, 2026590+46
Oct 16, 2026544-6
Oct 15, 2026550+19
Oct 14, 20265310
Oct 13, 2026531+17
Oct 09, 20265140
Oct 08, 20265140
Oct 07, 2026514+17
Oct 06, 2026497+3
Oct 05, 2026494+4
Oct 02, 2026490No prior observation