OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

UNH $290.00 Put

UNH280121P00290000

Latest saved OI454Oct 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 $290.00 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. 4632310 2026-10-02: 441 OI2026-10-05: 441 OI2026-10-06: 441 OI2026-10-07: 456 OI2026-10-08: 456 OI2026-10-09: 456 OI2026-10-14: 463 OI2026-10-15: 462 OI2026-10-16: 448 OI2026-10-21: 455 OI2026-10-23: 454 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, 2026Viewing454-1
Oct 21, 2026455+7
Oct 16, 2026448-14
Oct 15, 2026462-1
Oct 14, 2026463+7
Oct 09, 20264560
Oct 08, 20264560
Oct 07, 2026456+15
Oct 06, 20264410
Oct 05, 20264410
Oct 02, 2026441No prior observation