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Contract OI history

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Nov 20, 2026 EXPIRATION

NTSK $21.00 Call

NTSK261120C00021000

Latest saved OI494Oct 23, 2026
Last change+414vs previous saved observation
Saved market days3Oct 16, 2026 onwards
Daily open interest Hover a point for its date and OI
NTSK $21.00 call open interest history 3 saved observations from 2026-10-16 to 2026-10-23. Exact values and changes are listed in the table below. 4942470 2026-10-16: 0 OI2026-10-21: 80 OI2026-10-23: 494 OI Oct 16, 2026Oct 23, 2026

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

NTSK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing494+414
Oct 21, 202680+80
Oct 16, 20260No prior observation