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Contract OI history

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Oct 30, 2026 EXPIRATION

SOFI $17.50 Put

SOFI261030P00017500

Latest saved OI1,438Oct 23, 2026
Last change-131vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SOFI $17.50 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. 1,5697840 2026-10-09: 1,364 OI2026-10-13: 1,553 OI2026-10-14: 1,553 OI2026-10-15: 1,552 OI2026-10-16: 1,554 OI2026-10-21: 1,569 OI2026-10-23: 1,438 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, 2026Viewing1,438-131
Oct 21, 20261,569+15
Oct 16, 20261,554+2
Oct 15, 20261,552-1
Oct 14, 20261,5530
Oct 13, 20261,553+189
Oct 09, 20261,364No prior observation