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Contract OI history

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Dec 18, 2026 EXPIRATION

CAT $850.00 Call

CAT261218C00850000

Latest saved OI349Oct 23, 2026
Last change+121vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAT $850.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3491740 2026-10-02: 213 OI2026-10-05: 212 OI2026-10-06: 207 OI2026-10-07: 201 OI2026-10-08: 201 OI2026-10-09: 215 OI2026-10-13: 235 OI2026-10-14: 235 OI2026-10-15: 233 OI2026-10-16: 237 OI2026-10-21: 228 OI2026-10-23: 349 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, 2026Viewing349+121
Oct 21, 2026228-9
Oct 16, 2026237+4
Oct 15, 2026233-2
Oct 14, 20262350
Oct 13, 2026235+20
Oct 09, 2026215+14
Oct 08, 20262010
Oct 07, 2026201-6
Oct 06, 2026207-5
Oct 05, 2026212-1
Oct 02, 2026213No prior observation