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Contract OI history

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Oct 23, 2026 EXPIRATION

SNDK $640.00 Put

SNDK261023P00640000

Latest saved OI880Oct 23, 2026
Last change0vs 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. 8804400 2026-10-16: 0 OI2026-10-21: 880 OI2026-10-23: 880 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, 2026Viewing8800
Oct 21, 2026880+880
Oct 16, 20260No prior observation