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Contract OI history

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Mar 19, 2027 EXPIRATION

INSM $115.00 Put

INSM270319P00115000

Latest saved OI4,012Oct 21, 2026
Last change+2,003vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
INSM $115.00 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. 4,0122,0060 2026-10-09: 2,009 OI2026-10-13: 2,009 OI2026-10-15: 2,009 OI2026-10-16: 2,009 OI2026-10-21: 4,012 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, 2026Viewing4,012+2,003
Oct 16, 20262,0090
Oct 15, 20262,0090
Oct 13, 20262,0090
Oct 09, 20262,009No prior observation