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Contract OI history

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Dec 15, 2028 EXPIRATION

MSFT $280.00 Call

MSFT281215C00280000

Latest saved OI333Oct 23, 2026
Last change+12vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $280.00 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. 3331660 2026-10-09: 324 OI2026-10-13: 323 OI2026-10-14: 323 OI2026-10-15: 322 OI2026-10-16: 322 OI2026-10-21: 321 OI2026-10-23: 333 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, 2026Viewing333+12
Oct 21, 2026321-1
Oct 16, 20263220
Oct 15, 2026322-1
Oct 14, 20263230
Oct 13, 2026323-1
Oct 09, 2026324No prior observation