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Contract OI history

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Dec 18, 2026 EXPIRATION

NTRA $320.00 Put

NTRA261218P00320000

Latest saved OI14Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
NTRA $320.00 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. 1470 2026-10-09: 11 OI2026-10-13: 11 OI2026-10-14: 11 OI2026-10-15: 11 OI2026-10-16: 11 OI2026-10-21: 14 OI2026-10-23: 14 OI Oct 09, 2026Oct 23, 2026

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

NTRA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026140
Oct 21, 2026Viewing14+3
Oct 16, 2026110
Oct 15, 2026110
Oct 14, 2026110
Oct 13, 2026110
Oct 09, 202611No prior observation