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Contract OI history

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Oct 30, 2026 EXPIRATION

UNH $355.00 Put

UNH261030P00355000

Latest saved OI310Oct 23, 2026
Last change+1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UNH $355.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3101550 2026-10-02: 190 OI2026-10-05: 190 OI2026-10-06: 179 OI2026-10-07: 178 OI2026-10-08: 178 OI2026-10-09: 174 OI2026-10-14: 184 OI2026-10-15: 176 OI2026-10-16: 174 OI2026-10-21: 309 OI2026-10-23: 310 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

UNH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing310+1
Oct 21, 2026309+135
Oct 16, 2026174-2
Oct 15, 2026176-8
Oct 14, 2026184+10
Oct 09, 2026174-4
Oct 08, 20261780
Oct 07, 2026178-1
Oct 06, 2026179-11
Oct 05, 20261900
Oct 02, 2026190No prior observation