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Contract OI history

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Sep 17, 2027 EXPIRATION

UNH $400.00 Put

UNH270917P00400000

Latest saved OI292Oct 23, 2026
Last change+7vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UNH $400.00 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. 3181590 2026-10-02: 318 OI2026-10-05: 318 OI2026-10-06: 310 OI2026-10-07: 312 OI2026-10-08: 312 OI2026-10-09: 312 OI2026-10-14: 307 OI2026-10-15: 307 OI2026-10-16: 276 OI2026-10-21: 285 OI2026-10-23: 292 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, 2026Viewing292+7
Oct 21, 2026285+9
Oct 16, 2026276-31
Oct 15, 20263070
Oct 14, 2026307-5
Oct 09, 20263120
Oct 08, 20263120
Oct 07, 2026312+2
Oct 06, 2026310-8
Oct 05, 20263180
Oct 02, 2026318No prior observation