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Contract OI history

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Apr 16, 2027 EXPIRATION

SOFI $18.00 Put

SOFI270416P00018000

Latest saved OI2,244Oct 23, 2026
Last change+1vs 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. 2,2441,1220 2026-10-09: 1,904 OI2026-10-13: 1,932 OI2026-10-14: 1,932 OI2026-10-15: 1,973 OI2026-10-16: 2,232 OI2026-10-21: 2,243 OI2026-10-23: 2,244 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, 2026Viewing2,244+1
Oct 21, 20262,243+11
Oct 16, 20262,232+259
Oct 15, 20261,973+41
Oct 14, 20261,9320
Oct 13, 20261,932+28
Oct 09, 20261,904No prior observation