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Contract OI history

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Dec 18, 2026 EXPIRATION

UNH $440.00 Put

UNH261218P00440000

Latest saved OI309Oct 23, 2026
Last change+49vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UNH $440.00 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. 3091540 2026-10-02: 71 OI2026-10-05: 71 OI2026-10-06: 71 OI2026-10-07: 71 OI2026-10-08: 71 OI2026-10-09: 71 OI2026-10-14: 90 OI2026-10-15: 191 OI2026-10-16: 194 OI2026-10-21: 260 OI2026-10-23: 309 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, 2026Viewing309+49
Oct 21, 2026260+66
Oct 16, 2026194+3
Oct 15, 2026191+101
Oct 14, 202690+19
Oct 09, 2026710
Oct 08, 2026710
Oct 07, 2026710
Oct 06, 2026710
Oct 05, 2026710
Oct 02, 202671No prior observation