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Contract OI history

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Jan 21, 2028 EXPIRATION

UBS $40.00 Put

UBS280121P00040000

Latest saved OI609Oct 23, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UBS $40.00 put open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 6093040 2026-10-02: 560 OI2026-10-06: 560 OI2026-10-07: 560 OI2026-10-08: 560 OI2026-10-09: 560 OI2026-10-13: 563 OI2026-10-15: 564 OI2026-10-16: 564 OI2026-10-21: 609 OI2026-10-23: 609 OI Oct 02, 2026Oct 23, 2026

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

UBS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing6090
Oct 21, 2026609+45
Oct 16, 20265640
Oct 15, 2026564+1
Oct 13, 2026563+3
Oct 09, 20265600
Oct 08, 20265600
Oct 07, 20265600
Oct 06, 20265600
Oct 02, 2026560No prior observation