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Contract OI history

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Jan 21, 2028 EXPIRATION

UNH $310.00 Put

UNH280121P00310000

Latest saved OI265Oct 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 $310.00 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. 2701350 2026-10-02: 259 OI2026-10-05: 270 OI2026-10-06: 270 OI2026-10-07: 270 OI2026-10-08: 270 OI2026-10-09: 270 OI2026-10-14: 270 OI2026-10-15: 264 OI2026-10-16: 262 OI2026-10-21: 265 OI2026-10-23: 265 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, 2026Viewing2650
Oct 21, 2026265+3
Oct 16, 2026262-2
Oct 15, 2026264-6
Oct 14, 20262700
Oct 09, 20262700
Oct 08, 20262700
Oct 07, 20262700
Oct 06, 20262700
Oct 05, 2026270+11
Oct 02, 2026259No prior observation