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Contract OI history

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Nov 20, 2026 EXPIRATION

CAT $660.00 Put

CAT261120P00660000

Latest saved OI425Oct 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 $660.00 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. 4252120 2026-10-02: 299 OI2026-10-05: 297 OI2026-10-06: 288 OI2026-10-07: 292 OI2026-10-08: 292 OI2026-10-09: 294 OI2026-10-13: 329 OI2026-10-14: 329 OI2026-10-15: 312 OI2026-10-16: 319 OI2026-10-21: 419 OI2026-10-23: 425 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, 2026Viewing425+6
Oct 21, 2026419+100
Oct 16, 2026319+7
Oct 15, 2026312-17
Oct 14, 20263290
Oct 13, 2026329+35
Oct 09, 2026294+2
Oct 08, 20262920
Oct 07, 2026292+4
Oct 06, 2026288-9
Oct 05, 2026297-2
Oct 02, 2026299No prior observation