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Contract OI history

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Nov 20, 2026 EXPIRATION

MSFT $645.00 Call

MSFT261120C00645000

Latest saved OI491Oct 23, 2026
Last change-1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $645.00 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. 4932460 2026-10-09: 315 OI2026-10-13: 492 OI2026-10-14: 492 OI2026-10-15: 492 OI2026-10-16: 493 OI2026-10-21: 492 OI2026-10-23: 491 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, 2026Viewing491-1
Oct 21, 2026492-1
Oct 16, 2026493+1
Oct 15, 20264920
Oct 14, 20264920
Oct 13, 2026492+177
Oct 09, 2026315No prior observation