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Contract OI history

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Nov 20, 2026 EXPIRATION

CAT $850.00 Put

CAT261120P00850000

Latest saved OI153Oct 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 $850.00 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. 158790 2026-10-02: 150 OI2026-10-05: 151 OI2026-10-06: 156 OI2026-10-07: 153 OI2026-10-08: 153 OI2026-10-09: 155 OI2026-10-13: 158 OI2026-10-14: 158 OI2026-10-15: 158 OI2026-10-16: 158 OI2026-10-21: 154 OI2026-10-23: 153 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, 2026Viewing153-1
Oct 21, 2026154-4
Oct 16, 20261580
Oct 15, 20261580
Oct 14, 20261580
Oct 13, 2026158+3
Oct 09, 2026155+2
Oct 08, 20261530
Oct 07, 2026153-3
Oct 06, 2026156+5
Oct 05, 2026151+1
Oct 02, 2026150No prior observation