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Contract OI history

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Nov 20, 2026 EXPIRATION

INSM $85.00 Put

INSM261120P00085000

Latest saved OI247Oct 21, 2026
Last change+7vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
INSM $85.00 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. 2471230 2026-10-09: 84 OI2026-10-13: 86 OI2026-10-15: 241 OI2026-10-16: 240 OI2026-10-21: 247 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, 2026Viewing247+7
Oct 16, 2026240-1
Oct 15, 2026241+155
Oct 13, 202686+2
Oct 09, 202684No prior observation