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Contract OI history

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Sep 17, 2027 EXPIRATION

UNH $420.00 Put

UNH270917P00420000

Latest saved OI262Oct 23, 2026
Last change+4vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UNH $420.00 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. 3131560 2026-10-02: 273 OI2026-10-05: 273 OI2026-10-06: 273 OI2026-10-07: 273 OI2026-10-08: 273 OI2026-10-09: 273 OI2026-10-14: 275 OI2026-10-15: 275 OI2026-10-16: 313 OI2026-10-21: 258 OI2026-10-23: 262 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, 2026Viewing262+4
Oct 21, 2026258-55
Oct 16, 2026313+38
Oct 15, 20262750
Oct 14, 2026275+2
Oct 09, 20262730
Oct 08, 20262730
Oct 07, 20262730
Oct 06, 20262730
Oct 05, 20262730
Oct 02, 2026273No prior observation