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Contract OI history

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Dec 18, 2026 EXPIRATION

UMC $19.00 Put

UMC261218P00019000

Latest saved OI1,507Oct 23, 2026
Last change+3vs previous saved observation
Saved market days4Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
UMC $19.00 put open interest history 4 saved observations from 2026-10-15 to 2026-10-23. Exact values and changes are listed in the table below. 1,5077530 2026-10-15: 0 OI2026-10-16: 0 OI2026-10-21: 1,504 OI2026-10-23: 1,507 OI Oct 15, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

UMC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,507+3
Oct 21, 20261,504+1,504
Oct 16, 202600
Oct 15, 20260No prior observation