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Contract OI history

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Nov 20, 2026 EXPIRATION

CAT $820.00 Put

CAT261120P00820000

Latest saved OI315Oct 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 $820.00 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. 3211600 2026-10-02: 157 OI2026-10-05: 153 OI2026-10-06: 170 OI2026-10-07: 189 OI2026-10-08: 189 OI2026-10-09: 202 OI2026-10-13: 283 OI2026-10-14: 283 OI2026-10-15: 321 OI2026-10-16: 318 OI2026-10-21: 316 OI2026-10-23: 315 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, 2026Viewing315-1
Oct 21, 2026316-2
Oct 16, 2026318-3
Oct 15, 2026321+38
Oct 14, 20262830
Oct 13, 2026283+81
Oct 09, 2026202+13
Oct 08, 20261890
Oct 07, 2026189+19
Oct 06, 2026170+17
Oct 05, 2026153-4
Oct 02, 2026157No prior observation