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Contract OI history

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Dec 15, 2028 EXPIRATION

MSFT $320.00 Call

MSFT281215C00320000

Latest saved OI356Oct 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 $320.00 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. 3621810 2026-10-09: 362 OI2026-10-13: 359 OI2026-10-14: 359 OI2026-10-15: 357 OI2026-10-16: 357 OI2026-10-21: 356 OI2026-10-23: 356 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, 2026Viewing3560
Oct 21, 2026356-1
Oct 16, 20263570
Oct 15, 2026357-2
Oct 14, 20263590
Oct 13, 2026359-3
Oct 09, 2026362No prior observation