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Contract OI history

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Jan 21, 2028 EXPIRATION

UPST $27.50 Put

UPST280121P00027500

Latest saved OI900Oct 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 $27.50 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. 9004500 2026-10-09: 877 OI2026-10-13: 876 OI2026-10-14: 876 OI2026-10-15: 876 OI2026-10-16: 876 OI2026-10-21: 900 OI2026-10-23: 900 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, 2026Viewing9000
Oct 21, 2026900+24
Oct 16, 20268760
Oct 15, 20268760
Oct 14, 20268760
Oct 13, 2026876-1
Oct 09, 2026877No prior observation