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Contract OI history

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Mar 19, 2027 EXPIRATION

UNH $420.00 Put

UNH270319P00420000

Latest saved OI753Oct 23, 2026
Last change+30vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UNH $420.00 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. 7533760 2026-10-02: 439 OI2026-10-05: 439 OI2026-10-06: 436 OI2026-10-07: 436 OI2026-10-08: 436 OI2026-10-09: 436 OI2026-10-14: 436 OI2026-10-15: 436 OI2026-10-16: 697 OI2026-10-21: 723 OI2026-10-23: 753 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, 2026Viewing753+30
Oct 21, 2026723+26
Oct 16, 2026697+261
Oct 15, 20264360
Oct 14, 20264360
Oct 09, 20264360
Oct 08, 20264360
Oct 07, 20264360
Oct 06, 2026436-3
Oct 05, 20264390
Oct 02, 2026439No prior observation