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Contract OI history

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Apr 16, 2027 EXPIRATION

UMC $21.00 Put

UMC270416P00021000

Latest saved OI679Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UMC $21.00 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. 6793390 2026-10-02: 665 OI2026-10-05: 670 OI2026-10-06: 673 OI2026-10-07: 673 OI2026-10-08: 673 OI2026-10-09: 673 OI2026-10-13: 673 OI2026-10-14: 673 OI2026-10-15: 673 OI2026-10-16: 674 OI2026-10-21: 679 OI2026-10-23: 679 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, 2026Viewing6790
Oct 21, 2026679+5
Oct 16, 2026674+1
Oct 15, 20266730
Oct 14, 20266730
Oct 13, 20266730
Oct 09, 20266730
Oct 08, 20266730
Oct 07, 20266730
Oct 06, 2026673+3
Oct 05, 2026670+5
Oct 02, 2026665No prior observation