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Contract OI history

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Dec 18, 2026 EXPIRATION

NTSK $15.00 Put

NTSK261218P00015000

Latest saved OI369Oct 23, 2026
Last change+27vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
NTSK $15.00 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. 3691840 2026-10-09: 351 OI2026-10-13: 341 OI2026-10-14: 341 OI2026-10-15: 342 OI2026-10-16: 344 OI2026-10-21: 342 OI2026-10-23: 369 OI Oct 09, 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, 2026Viewing369+27
Oct 21, 2026342-2
Oct 16, 2026344+2
Oct 15, 2026342+1
Oct 14, 20263410
Oct 13, 2026341-10
Oct 09, 2026351No prior observation