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Contract OI history

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Feb 19, 2027 EXPIRATION

CAT $800.00 Put

CAT270219P00800000

Latest saved OI228Oct 23, 2026
Last change+4vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAT $800.00 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. 2281140 2026-10-02: 180 OI2026-10-05: 180 OI2026-10-06: 181 OI2026-10-07: 182 OI2026-10-08: 182 OI2026-10-09: 214 OI2026-10-13: 218 OI2026-10-14: 218 OI2026-10-15: 221 OI2026-10-16: 223 OI2026-10-21: 224 OI2026-10-23: 228 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, 2026Viewing228+4
Oct 21, 2026224+1
Oct 16, 2026223+2
Oct 15, 2026221+3
Oct 14, 20262180
Oct 13, 2026218+4
Oct 09, 2026214+32
Oct 08, 20261820
Oct 07, 2026182+1
Oct 06, 2026181+1
Oct 05, 20261800
Oct 02, 2026180No prior observation