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Contract OI history

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Dec 18, 2026 EXPIRATION

INSM $70.00 Put

INSM261218P00070000

Latest saved OI12Oct 21, 2026
Last change+12vs previous saved observation
Saved market days3Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
INSM $70.00 put open interest history 3 saved observations from 2026-10-15 to 2026-10-21. Exact values and changes are listed in the table below. 1260 2026-10-15: 0 OI2026-10-16: 0 OI2026-10-21: 12 OI Oct 15, 2026Oct 21, 2026

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

INSM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 21, 2026Viewing12+12
Oct 16, 202600
Oct 15, 20260No prior observation