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Contract OI history

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Feb 19, 2027 EXPIRATION

CAT $660.00 Put

CAT270219P00660000

Latest saved OI271Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAT $660.00 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. 2711350 2026-10-02: 207 OI2026-10-05: 207 OI2026-10-06: 213 OI2026-10-07: 214 OI2026-10-08: 214 OI2026-10-09: 212 OI2026-10-13: 222 OI2026-10-14: 222 OI2026-10-15: 222 OI2026-10-16: 248 OI2026-10-21: 271 OI2026-10-23: 271 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, 2026Viewing2710
Oct 21, 2026271+23
Oct 16, 2026248+26
Oct 15, 20262220
Oct 14, 20262220
Oct 13, 2026222+10
Oct 09, 2026212-2
Oct 08, 20262140
Oct 07, 2026214+1
Oct 06, 2026213+6
Oct 05, 20262070
Oct 02, 2026207No prior observation