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Contract OI history

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Mar 19, 2027 EXPIRATION

SNDK $650.00 Put

SNDK270319P00650000

Latest saved OI222Oct 23, 2026
Last change-126vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SNDK $650.00 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. 3481740 2026-10-09: 55 OI2026-10-13: 55 OI2026-10-14: 55 OI2026-10-15: 55 OI2026-10-16: 55 OI2026-10-21: 348 OI2026-10-23: 222 OI Oct 09, 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, 2026Viewing222-126
Oct 21, 2026348+293
Oct 16, 2026550
Oct 15, 2026550
Oct 14, 2026550
Oct 13, 2026550
Oct 09, 202655No prior observation