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Contract OI history

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Dec 15, 2028 EXPIRATION

UNH $420.00 Put

UNH281215P00420000

Latest saved OI66Oct 23, 2026
Last change0vs 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. 66330 2026-10-02: 57 OI2026-10-05: 57 OI2026-10-06: 55 OI2026-10-07: 55 OI2026-10-08: 55 OI2026-10-09: 55 OI2026-10-14: 55 OI2026-10-15: 55 OI2026-10-16: 55 OI2026-10-21: 66 OI2026-10-23: 66 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, 2026Viewing660
Oct 21, 202666+11
Oct 16, 2026550
Oct 15, 2026550
Oct 14, 2026550
Oct 09, 2026550
Oct 08, 2026550
Oct 07, 2026550
Oct 06, 202655-2
Oct 05, 2026570
Oct 02, 202657No prior observation