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Contract OI history

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Jan 15, 2027 EXPIRATION

NTSK $12.50 Put

NTSK270115P00012500

Latest saved OI280Oct 23, 2026
Last change-34vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
NTSK $12.50 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. 3141570 2026-10-09: 310 OI2026-10-13: 313 OI2026-10-14: 314 OI2026-10-15: 314 OI2026-10-16: 314 OI2026-10-21: 314 OI2026-10-23: 280 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, 2026Viewing280-34
Oct 21, 20263140
Oct 16, 20263140
Oct 15, 20263140
Oct 14, 2026314+1
Oct 13, 2026313+3
Oct 09, 2026310No prior observation