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Contract OI history

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Nov 20, 2026 EXPIRATION

MSFT $512.50 Call

MSFT261120C00512500

Latest saved OI218Oct 23, 2026
Last change+36vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $512.50 call open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 2181090 2026-10-21: 182 OI2026-10-23: 218 OI Oct 21, 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, 2026Viewing218+36
Oct 21, 2026182No prior observation