OITracker Cboe delayed data

Contract OI history

Back to UPST

Jan 21, 2028 EXPIRATION

UPST $20.00 Put

UPST280121P00020000

Latest saved OI1,048Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
UPST $20.00 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. 1,0485240 2026-10-09: 1,040 OI2026-10-13: 1,040 OI2026-10-14: 1,040 OI2026-10-15: 1,040 OI2026-10-16: 1,040 OI2026-10-21: 1,048 OI2026-10-23: 1,048 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, 2026Viewing1,0480
Oct 21, 20261,048+8
Oct 16, 20261,0400
Oct 15, 20261,0400
Oct 14, 20261,0400
Oct 13, 20261,0400
Oct 09, 20261,040No prior observation