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Contract OI history

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Jan 15, 2027 EXPIRATION

UMC $20.00 Put

UMC270115P00020000

Latest saved OI5,280Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UMC $20.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 5,2802,6400 2026-10-02: 5,244 OI2026-10-05: 5,244 OI2026-10-06: 5,170 OI2026-10-07: 5,170 OI2026-10-08: 5,200 OI2026-10-09: 5,205 OI2026-10-13: 5,218 OI2026-10-14: 5,259 OI2026-10-15: 5,260 OI2026-10-16: 5,259 OI2026-10-21: 5,279 OI2026-10-23: 5,280 OI Oct 02, 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, 2026Viewing5,280+1
Oct 21, 20265,279+20
Oct 16, 20265,259-1
Oct 15, 20265,260+1
Oct 14, 20265,259+41
Oct 13, 20265,218+13
Oct 09, 20265,205+5
Oct 08, 20265,200+30
Oct 07, 20265,1700
Oct 06, 20265,170-74
Oct 05, 20265,2440
Oct 02, 20265,244No prior observation