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Contract OI history

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Oct 30, 2026 EXPIRATION

UNH $400.00 Put

UNH261030P00400000

Latest saved OI1,370Oct 23, 2026
Last change+91vs 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. 1,3706850 2026-10-02: 47 OI2026-10-05: 48 OI2026-10-06: 48 OI2026-10-07: 48 OI2026-10-08: 48 OI2026-10-09: 49 OI2026-10-14: 64 OI2026-10-15: 64 OI2026-10-16: 115 OI2026-10-21: 1,279 OI2026-10-23: 1,370 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, 2026Viewing1,370+91
Oct 21, 20261,279+1,164
Oct 16, 2026115+51
Oct 15, 2026640
Oct 14, 202664+15
Oct 09, 202649+1
Oct 08, 2026480
Oct 07, 2026480
Oct 06, 2026480
Oct 05, 202648+1
Oct 02, 202647No prior observation