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Contract OI history

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Dec 18, 2026 EXPIRATION

CAT $810.00 Put

CAT261218P00810000

Latest saved OI267Oct 23, 2026
Last change+10vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAT $810.00 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. 2671330 2026-10-02: 231 OI2026-10-05: 223 OI2026-10-06: 218 OI2026-10-07: 219 OI2026-10-08: 219 OI2026-10-09: 244 OI2026-10-13: 256 OI2026-10-14: 256 OI2026-10-15: 256 OI2026-10-16: 256 OI2026-10-21: 257 OI2026-10-23: 267 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, 2026Viewing267+10
Oct 21, 2026257+1
Oct 16, 20262560
Oct 15, 20262560
Oct 14, 20262560
Oct 13, 2026256+12
Oct 09, 2026244+25
Oct 08, 20262190
Oct 07, 2026219+1
Oct 06, 2026218-5
Oct 05, 2026223-8
Oct 02, 2026231No prior observation