OITracker Cboe delayed data

Contract OI history

Back to UPST

May 21, 2027 EXPIRATION

UPST $25.00 Put

UPST270521P00025000

Latest saved OI667Oct 23, 2026
Last change-3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
UPST $25.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 6763380 2026-10-09: 676 OI2026-10-13: 676 OI2026-10-14: 676 OI2026-10-15: 670 OI2026-10-16: 670 OI2026-10-21: 670 OI2026-10-23: 667 OI Oct 09, 2026Oct 23, 2026

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

UPST contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing667-3
Oct 21, 20266700
Oct 16, 20266700
Oct 15, 2026670-6
Oct 14, 20266760
Oct 13, 20266760
Oct 09, 2026676No prior observation