OITracker Cboe delayed data

Contract OI history

Back to UNH

Jan 21, 2028 EXPIRATION

UNH $440.00 Put

UNH280121P00440000

Latest saved OI128Oct 23, 2026
Last change+10vs 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. 128640 2026-10-02: 117 OI2026-10-05: 117 OI2026-10-06: 117 OI2026-10-07: 117 OI2026-10-08: 117 OI2026-10-09: 117 OI2026-10-14: 117 OI2026-10-15: 117 OI2026-10-16: 117 OI2026-10-21: 118 OI2026-10-23: 128 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, 2026Viewing128+10
Oct 21, 2026118+1
Oct 16, 20261170
Oct 15, 20261170
Oct 14, 20261170
Oct 09, 20261170
Oct 08, 20261170
Oct 07, 20261170
Oct 06, 20261170
Oct 05, 20261170
Oct 02, 2026117No prior observation