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Contract OI history

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Nov 20, 2026 EXPIRATION

SOFI $13.50 Put

SOFI261120P00013500

Latest saved OI667Oct 23, 2026
Last change+282vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
SOFI $13.50 put open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 6673330 2026-10-21: 385 OI2026-10-23: 667 OI Oct 21, 2026Oct 23, 2026

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

SOFI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing667+282
Oct 21, 2026385No prior observation