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Contract OI history

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Jun 17, 2027 EXPIRATION

MSFT $640.00 Call

MSFT270617C00640000

Latest saved OI751Oct 23, 2026
Last change+67vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $640.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 7713850 2026-10-09: 763 OI2026-10-13: 771 OI2026-10-14: 771 OI2026-10-15: 768 OI2026-10-16: 764 OI2026-10-21: 684 OI2026-10-23: 751 OI Oct 09, 2026Oct 23, 2026

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

MSFT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing751+67
Oct 21, 2026684-80
Oct 16, 2026764-4
Oct 15, 2026768-3
Oct 14, 20267710
Oct 13, 2026771+8
Oct 09, 2026763No prior observation