OITracker Cboe delayed data

Contract OI history

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Sep 15, 2028 EXPIRATION

SNDK $600.00 Put

SNDK280915P00600000

Latest saved OI372Oct 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
SNDK $600.00 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. 3891940 2026-10-09: 389 OI2026-10-13: 370 OI2026-10-14: 370 OI2026-10-15: 372 OI2026-10-16: 372 OI2026-10-21: 373 OI2026-10-23: 372 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, 2026Viewing372-1
Oct 21, 2026373+1
Oct 16, 20263720
Oct 15, 2026372+2
Oct 14, 20263700
Oct 13, 2026370-19
Oct 09, 2026389No prior observation