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Contract OI history

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Nov 20, 2026 EXPIRATION

INSM $90.00 Put

INSM261120P00090000

Latest saved OI3,397Oct 21, 2026
Last change+78vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
INSM $90.00 put open interest history 5 saved observations from 2026-10-09 to 2026-10-21. Exact values and changes are listed in the table below. 3,3971,6980 2026-10-09: 3,331 OI2026-10-13: 3,335 OI2026-10-15: 3,319 OI2026-10-16: 3,319 OI2026-10-21: 3,397 OI Oct 09, 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, 2026Viewing3,397+78
Oct 16, 20263,3190
Oct 15, 20263,319-16
Oct 13, 20263,335+4
Oct 09, 20263,331No prior observation