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Contract OI history

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Sep 17, 2027 EXPIRATION

MSFT $665.00 Call

MSFT270917C00665000

Latest saved OI287Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $665.00 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. 2871430 2026-10-09: 220 OI2026-10-13: 270 OI2026-10-14: 270 OI2026-10-15: 270 OI2026-10-16: 270 OI2026-10-21: 287 OI2026-10-23: 287 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, 2026Viewing2870
Oct 21, 2026287+17
Oct 16, 20262700
Oct 15, 20262700
Oct 14, 20262700
Oct 13, 2026270+50
Oct 09, 2026220No prior observation