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Contract OI history

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Sep 17, 2027 EXPIRATION

MSFT $400.00 Call

MSFT270917C00400000

Latest saved OI604Oct 23, 2026
Last change-9vs 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. 6173080 2026-10-09: 571 OI2026-10-13: 569 OI2026-10-14: 569 OI2026-10-15: 617 OI2026-10-16: 616 OI2026-10-21: 613 OI2026-10-23: 604 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, 2026Viewing604-9
Oct 21, 2026613-3
Oct 16, 2026616-1
Oct 15, 2026617+48
Oct 14, 20265690
Oct 13, 2026569-2
Oct 09, 2026571No prior observation