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Contract OI history

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Nov 20, 2026 EXPIRATION

UNP $255.00 Put

UNP261120P00255000

Latest saved OI160Oct 23, 2026
Last change+3vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UNP $255.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 160800 2026-10-02: 110 OI2026-10-05: 110 OI2026-10-06: 115 OI2026-10-07: 120 OI2026-10-08: 119 OI2026-10-09: 119 OI2026-10-14: 160 OI2026-10-15: 159 OI2026-10-16: 158 OI2026-10-21: 157 OI2026-10-23: 160 OI Oct 02, 2026Oct 23, 2026

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

UNP contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing160+3
Oct 21, 2026157-1
Oct 16, 2026158-1
Oct 15, 2026159-1
Oct 14, 2026160+41
Oct 09, 20261190
Oct 08, 2026119-1
Oct 07, 2026120+5
Oct 06, 2026115+5
Oct 05, 20261100
Oct 02, 2026110No prior observation