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Contract OI history

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Oct 30, 2026 EXPIRATION

SNDK $640.00 Put

SNDK261030P00640000

Latest saved OI178Oct 23, 2026
Last change+156vs previous saved observation
Saved market days3Oct 16, 2026 onwards
Daily open interest Hover a point for its date and OI
SNDK $640.00 put open interest history 3 saved observations from 2026-10-16 to 2026-10-23. Exact values and changes are listed in the table below. 178890 2026-10-16: 0 OI2026-10-21: 22 OI2026-10-23: 178 OI Oct 16, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

SNDK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing178+156
Oct 21, 202622+22
Oct 16, 20260No prior observation