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Contract OI history

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Nov 20, 2026 EXPIRATION

SOFI $18.00 Put

SOFI261120P00018000

Latest saved OI7,153Oct 23, 2026
Last change-70vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SOFI $18.00 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. 7,7403,8700 2026-10-09: 7,740 OI2026-10-13: 7,705 OI2026-10-14: 7,705 OI2026-10-15: 7,471 OI2026-10-16: 7,329 OI2026-10-21: 7,223 OI2026-10-23: 7,153 OI Oct 09, 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, 2026Viewing7,153-70
Oct 21, 20267,223-106
Oct 16, 20267,329-142
Oct 15, 20267,471-234
Oct 14, 20267,7050
Oct 13, 20267,705-35
Oct 09, 20267,740No prior observation