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Contract OI history

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Nov 20, 2026 EXPIRATION

CAT $840.00 Put

CAT261120P00840000

Latest saved OI126Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAT $840.00 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. 130650 2026-10-02: 102 OI2026-10-05: 101 OI2026-10-06: 124 OI2026-10-07: 124 OI2026-10-08: 124 OI2026-10-09: 130 OI2026-10-13: 128 OI2026-10-14: 128 OI2026-10-15: 129 OI2026-10-16: 129 OI2026-10-21: 127 OI2026-10-23: 126 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, 2026Viewing126-1
Oct 21, 2026127-2
Oct 16, 20261290
Oct 15, 2026129+1
Oct 14, 20261280
Oct 13, 2026128-2
Oct 09, 2026130+6
Oct 08, 20261240
Oct 07, 20261240
Oct 06, 2026124+23
Oct 05, 2026101-1
Oct 02, 2026102No prior observation