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Contract OI history

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Dec 18, 2026 EXPIRATION

UNH $340.00 Put

UNH261218P00340000

Latest saved OI2,251Oct 23, 2026
Last change+91vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UNH $340.00 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. 2,2511,1250 2026-10-02: 1,560 OI2026-10-05: 1,531 OI2026-10-06: 1,570 OI2026-10-07: 1,583 OI2026-10-08: 1,583 OI2026-10-09: 1,619 OI2026-10-14: 2,218 OI2026-10-15: 2,179 OI2026-10-16: 2,146 OI2026-10-21: 2,160 OI2026-10-23: 2,251 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, 2026Viewing2,251+91
Oct 21, 20262,160+14
Oct 16, 20262,146-33
Oct 15, 20262,179-39
Oct 14, 20262,218+599
Oct 09, 20261,619+36
Oct 08, 20261,5830
Oct 07, 20261,583+13
Oct 06, 20261,570+39
Oct 05, 20261,531-29
Oct 02, 20261,560No prior observation