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Contract OI history

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Dec 18, 2026 EXPIRATION

CAT $680.00 Put

CAT261218P00680000

Latest saved OI343Oct 23, 2026
Last change+15vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAT $680.00 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. 3431710 2026-10-02: 150 OI2026-10-05: 150 OI2026-10-06: 147 OI2026-10-07: 152 OI2026-10-08: 152 OI2026-10-09: 154 OI2026-10-13: 165 OI2026-10-14: 165 OI2026-10-15: 172 OI2026-10-16: 289 OI2026-10-21: 328 OI2026-10-23: 343 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, 2026Viewing343+15
Oct 21, 2026328+39
Oct 16, 2026289+117
Oct 15, 2026172+7
Oct 14, 20261650
Oct 13, 2026165+11
Oct 09, 2026154+2
Oct 08, 20261520
Oct 07, 2026152+5
Oct 06, 2026147-3
Oct 05, 20261500
Oct 02, 2026150No prior observation