OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

UNH $320.00 Put

UNH261218P00320000

Latest saved OI1,094Oct 23, 2026
Last change-17vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UNH $320.00 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. 1,2096040 2026-10-02: 1,151 OI2026-10-05: 1,137 OI2026-10-06: 1,153 OI2026-10-07: 1,138 OI2026-10-08: 1,138 OI2026-10-09: 1,169 OI2026-10-14: 1,209 OI2026-10-15: 1,192 OI2026-10-16: 1,162 OI2026-10-21: 1,111 OI2026-10-23: 1,094 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, 2026Viewing1,094-17
Oct 21, 20261,111-51
Oct 16, 20261,162-30
Oct 15, 20261,192-17
Oct 14, 20261,209+40
Oct 09, 20261,169+31
Oct 08, 20261,1380
Oct 07, 20261,138-15
Oct 06, 20261,153+16
Oct 05, 20261,137-14
Oct 02, 20261,151No prior observation