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Contract OI history

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Dec 18, 2026 EXPIRATION

CAT $1040.00 Call

CAT261218C01040000

Latest saved OI311Oct 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 $1040.00 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. 3131560 2026-10-02: 290 OI2026-10-05: 289 OI2026-10-06: 297 OI2026-10-07: 300 OI2026-10-08: 300 OI2026-10-09: 299 OI2026-10-13: 313 OI2026-10-14: 313 OI2026-10-15: 313 OI2026-10-16: 306 OI2026-10-21: 301 OI2026-10-23: 311 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, 2026Viewing311+10
Oct 21, 2026301-5
Oct 16, 2026306-7
Oct 15, 20263130
Oct 14, 20263130
Oct 13, 2026313+14
Oct 09, 2026299-1
Oct 08, 20263000
Oct 07, 2026300+3
Oct 06, 2026297+8
Oct 05, 2026289-1
Oct 02, 2026290No prior observation