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Contract OI history

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Nov 20, 2026 EXPIRATION

UMC $20.00 Put

UMC261120P00020000

Latest saved OI737Oct 23, 2026
Last change-5vs 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. 7423710 2026-10-02: 36 OI2026-10-05: 43 OI2026-10-06: 121 OI2026-10-07: 121 OI2026-10-08: 116 OI2026-10-09: 113 OI2026-10-13: 132 OI2026-10-14: 151 OI2026-10-15: 152 OI2026-10-16: 704 OI2026-10-21: 742 OI2026-10-23: 737 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, 2026Viewing737-5
Oct 21, 2026742+38
Oct 16, 2026704+552
Oct 15, 2026152+1
Oct 14, 2026151+19
Oct 13, 2026132+19
Oct 09, 2026113-3
Oct 08, 2026116-5
Oct 07, 20261210
Oct 06, 2026121+78
Oct 05, 202643+7
Oct 02, 202636No prior observation