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Contract OI history

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Dec 18, 2026 EXPIRATION

ASMB $40.00 Call

ASMB261218C00040000

Latest saved OI250Oct 20, 2026
Last change+50vs previous saved observation
Saved market days5Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
ASMB $40.00 call open interest history 5 saved observations from 2026-10-08 to 2026-10-20. Exact values and changes are listed in the table below. 2501250 2026-10-08: 200 OI2026-10-13: 200 OI2026-10-14: 200 OI2026-10-16: 200 OI2026-10-20: 250 OI Oct 08, 2026Oct 20, 2026

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

ASMB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing250+50
Oct 16, 20262000
Oct 14, 20262000
Oct 13, 20262000
Oct 08, 2026200No prior observation