OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

UNH $350.00 Put

UNH280121P00350000

Latest saved OI1,679Oct 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 $350.00 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. 1,7148570 2026-10-02: 1,710 OI2026-10-05: 1,711 OI2026-10-06: 1,710 OI2026-10-07: 1,698 OI2026-10-08: 1,698 OI2026-10-09: 1,700 OI2026-10-14: 1,714 OI2026-10-15: 1,714 OI2026-10-16: 1,668 OI2026-10-21: 1,685 OI2026-10-23: 1,679 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, 2026Viewing1,679-6
Oct 21, 20261,685+17
Oct 16, 20261,668-46
Oct 15, 20261,7140
Oct 14, 20261,714+14
Oct 09, 20261,700+2
Oct 08, 20261,6980
Oct 07, 20261,698-12
Oct 06, 20261,710-1
Oct 05, 20261,711+1
Oct 02, 20261,710No prior observation