OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

UNH $280.00 Put

UNH270319P00280000

Latest saved OI487Oct 23, 2026
Last change-6vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UNH $280.00 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. 5002500 2026-10-02: 443 OI2026-10-05: 450 OI2026-10-06: 460 OI2026-10-07: 461 OI2026-10-08: 461 OI2026-10-09: 487 OI2026-10-14: 491 OI2026-10-15: 493 OI2026-10-16: 500 OI2026-10-21: 493 OI2026-10-23: 487 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, 2026Viewing487-6
Oct 21, 2026493-7
Oct 16, 2026500+7
Oct 15, 2026493+2
Oct 14, 2026491+4
Oct 09, 2026487+26
Oct 08, 20264610
Oct 07, 2026461+1
Oct 06, 2026460+10
Oct 05, 2026450+7
Oct 02, 2026443No prior observation