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Contract OI history

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Dec 18, 2026 EXPIRATION

UPST $22.50 Put

UPST261218P00022500

Latest saved OI1,547Oct 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 $22.50 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. 1,5817900 2026-10-09: 1,192 OI2026-10-13: 1,331 OI2026-10-14: 1,331 OI2026-10-15: 1,581 OI2026-10-16: 1,551 OI2026-10-21: 1,550 OI2026-10-23: 1,547 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, 20261,547-3
Oct 21, 2026Viewing1,550-1
Oct 16, 20261,551-30
Oct 15, 20261,581+250
Oct 14, 20261,3310
Oct 13, 20261,331+139
Oct 09, 20261,192No prior observation