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Contract OI history

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Jan 15, 2027 EXPIRATION

MSFT $400.00 Call

MSFT270115C00400000

Latest saved OI10,509Oct 23, 2026
Last change+4vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $400.00 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. 10,5865,2930 2026-10-09: 10,586 OI2026-10-13: 10,551 OI2026-10-14: 10,551 OI2026-10-15: 10,486 OI2026-10-16: 10,484 OI2026-10-21: 10,505 OI2026-10-23: 10,509 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, 2026Viewing10,509+4
Oct 21, 202610,505+21
Oct 16, 202610,484-2
Oct 15, 202610,486-65
Oct 14, 202610,5510
Oct 13, 202610,551-35
Oct 09, 202610,586No prior observation