OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

UNP $250.00 Put

UNP261218P00250000

Latest saved OI2,185Oct 23, 2026
Last change-11vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
UNP $250.00 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. 2,1971,0980 2026-10-02: 2,197 OI2026-10-05: 2,196 OI2026-10-06: 2,195 OI2026-10-07: 2,195 OI2026-10-08: 2,195 OI2026-10-09: 2,197 OI2026-10-14: 2,190 OI2026-10-15: 2,188 OI2026-10-16: 2,197 OI2026-10-21: 2,196 OI2026-10-23: 2,185 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, 2026Viewing2,185-11
Oct 21, 20262,196-1
Oct 16, 20262,197+9
Oct 15, 20262,188-2
Oct 14, 20262,190-7
Oct 09, 20262,197+2
Oct 08, 20262,1950
Oct 07, 20262,1950
Oct 06, 20262,195-1
Oct 05, 20262,196-1
Oct 02, 20262,197No prior observation