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Contract OI history

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Oct 23, 2026 EXPIRATION

SOFI $13.50 Put

SOFI261023P00013500

Latest saved OI7,312Oct 23, 2026
Last change-238vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SOFI $13.50 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. 7,5503,7750 2026-10-09: 454 OI2026-10-13: 462 OI2026-10-14: 462 OI2026-10-15: 5,304 OI2026-10-16: 3,412 OI2026-10-21: 7,550 OI2026-10-23: 7,312 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, 2026Viewing7,312-238
Oct 21, 20267,550+4,138
Oct 16, 20263,412-1,892
Oct 15, 20265,304+4,842
Oct 14, 20264620
Oct 13, 2026462+8
Oct 09, 2026454No prior observation