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Contract OI history

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Nov 20, 2026 EXPIRATION

NTRA $400.00 Put

NTRA261120P00400000

Latest saved OI1,115Oct 23, 2026
Last change+8vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
NTRA $400.00 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. 1,1155570 2026-10-09: 1,049 OI2026-10-13: 1,048 OI2026-10-14: 1,058 OI2026-10-15: 1,059 OI2026-10-16: 1,057 OI2026-10-21: 1,107 OI2026-10-23: 1,115 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, 20261,115+8
Oct 21, 2026Viewing1,107+50
Oct 16, 20261,057-2
Oct 15, 20261,059+1
Oct 14, 20261,058+10
Oct 13, 20261,048-1
Oct 09, 20261,049No prior observation