OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

UNH $250.00 Put

UNH261218P00250000

Latest saved OI4,436Oct 23, 2026
Last change-1vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UNH $250.00 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. 4,4542,2270 2026-10-02: 4,395 OI2026-10-05: 4,395 OI2026-10-06: 4,401 OI2026-10-07: 4,396 OI2026-10-08: 4,396 OI2026-10-09: 4,396 OI2026-10-14: 4,452 OI2026-10-15: 4,454 OI2026-10-16: 4,443 OI2026-10-21: 4,437 OI2026-10-23: 4,436 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, 2026Viewing4,436-1
Oct 21, 20264,437-6
Oct 16, 20264,443-11
Oct 15, 20264,454+2
Oct 14, 20264,452+56
Oct 09, 20264,3960
Oct 08, 20264,3960
Oct 07, 20264,396-5
Oct 06, 20264,401+6
Oct 05, 20264,3950
Oct 02, 20264,395No prior observation