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Contract OI history

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Nov 06, 2026 EXPIRATION

SOFI $18.00 Put

SOFI261106P00018000

Latest saved OI221Oct 23, 2026
Last change-7vs 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. 3231610 2026-10-09: 281 OI2026-10-13: 323 OI2026-10-14: 323 OI2026-10-15: 279 OI2026-10-16: 243 OI2026-10-21: 228 OI2026-10-23: 221 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, 2026Viewing221-7
Oct 21, 2026228-15
Oct 16, 2026243-36
Oct 15, 2026279-44
Oct 14, 20263230
Oct 13, 2026323+42
Oct 09, 2026281No prior observation