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Contract OI history

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Oct 23, 2026 EXPIRATION

UNH $422.50 Put

UNH261023P00422500

Latest saved OI511Oct 23, 2026
Last change+344vs previous saved observation
Saved market days5Oct 14, 2026 onwards
Daily open interest Hover a point for its date and OI
UNH $422.50 put open interest history 5 saved observations from 2026-10-14 to 2026-10-23. Exact values and changes are listed in the table below. 5112550 2026-10-14: 0 OI2026-10-15: 0 OI2026-10-16: 0 OI2026-10-21: 167 OI2026-10-23: 511 OI Oct 14, 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, 2026Viewing511+344
Oct 21, 2026167+167
Oct 16, 202600
Oct 15, 202600
Oct 14, 20260No prior observation