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Contract OI history

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Dec 18, 2026 EXPIRATION

MSFT $400.00 Call

MSFT261218C00400000

Latest saved OI5,980Oct 23, 2026
Last change-22vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $400.00 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. 6,0533,0260 2026-10-09: 6,053 OI2026-10-13: 6,050 OI2026-10-14: 6,050 OI2026-10-15: 6,049 OI2026-10-16: 6,049 OI2026-10-21: 6,002 OI2026-10-23: 5,980 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, 2026Viewing5,980-22
Oct 21, 20266,002-47
Oct 16, 20266,0490
Oct 15, 20266,049-1
Oct 14, 20266,0500
Oct 13, 20266,050-3
Oct 09, 20266,053No prior observation