OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

UNH $370.00 Put

UNH280121P00370000

Latest saved OI143Oct 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 $370.00 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. 145720 2026-10-02: 137 OI2026-10-05: 137 OI2026-10-06: 138 OI2026-10-07: 138 OI2026-10-08: 138 OI2026-10-09: 145 OI2026-10-14: 145 OI2026-10-15: 145 OI2026-10-16: 140 OI2026-10-21: 143 OI2026-10-23: 143 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, 2026Viewing1430
Oct 21, 2026143+3
Oct 16, 2026140-5
Oct 15, 20261450
Oct 14, 20261450
Oct 09, 2026145+7
Oct 08, 20261380
Oct 07, 20261380
Oct 06, 2026138+1
Oct 05, 20261370
Oct 02, 2026137No prior observation