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Contract OI history

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Dec 15, 2028 EXPIRATION

UNH $310.00 Put

UNH281215P00310000

Latest saved OI141Oct 23, 2026
Last change-22vs 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. 163810 2026-10-02: 141 OI2026-10-05: 141 OI2026-10-06: 141 OI2026-10-07: 141 OI2026-10-08: 141 OI2026-10-09: 134 OI2026-10-14: 135 OI2026-10-15: 135 OI2026-10-16: 135 OI2026-10-21: 163 OI2026-10-23: 141 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, 2026Viewing141-22
Oct 21, 2026163+28
Oct 16, 20261350
Oct 15, 20261350
Oct 14, 2026135+1
Oct 09, 2026134-7
Oct 08, 20261410
Oct 07, 20261410
Oct 06, 20261410
Oct 05, 20261410
Oct 02, 2026141No prior observation