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Contract OI history

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Nov 20, 2026 EXPIRATION

NTSK $22.50 Put

NTSK261120P00022500

Latest saved OI111Oct 23, 2026
Last change+50vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
NTSK $22.50 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. 111550 2026-10-09: 0 OI2026-10-13: 61 OI2026-10-14: 61 OI2026-10-15: 61 OI2026-10-16: 61 OI2026-10-21: 61 OI2026-10-23: 111 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, 2026Viewing111+50
Oct 21, 2026610
Oct 16, 2026610
Oct 15, 2026610
Oct 14, 2026610
Oct 13, 202661+61
Oct 09, 20260No prior observation