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Contract OI history

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Nov 06, 2026 EXPIRATION

CAT $645.00 Put

CAT261106P00645000

Latest saved OI178Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAT $645.00 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. 178890 2026-10-02: 118 OI2026-10-05: 118 OI2026-10-06: 141 OI2026-10-07: 141 OI2026-10-08: 141 OI2026-10-09: 141 OI2026-10-13: 165 OI2026-10-14: 165 OI2026-10-15: 166 OI2026-10-16: 176 OI2026-10-21: 176 OI2026-10-23: 178 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, 2026Viewing178+2
Oct 21, 20261760
Oct 16, 2026176+10
Oct 15, 2026166+1
Oct 14, 20261650
Oct 13, 2026165+24
Oct 09, 20261410
Oct 08, 20261410
Oct 07, 20261410
Oct 06, 2026141+23
Oct 05, 20261180
Oct 02, 2026118No prior observation