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Contract OI history

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Jun 17, 2027 EXPIRATION

MSFT $320.00 Call

MSFT270617C00320000

Latest saved OI351Oct 23, 2026
Last change-6vs 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. 3571780 2026-10-09: 342 OI2026-10-13: 340 OI2026-10-14: 340 OI2026-10-15: 351 OI2026-10-16: 351 OI2026-10-21: 357 OI2026-10-23: 351 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, 2026Viewing351-6
Oct 21, 2026357+6
Oct 16, 20263510
Oct 15, 2026351+11
Oct 14, 20263400
Oct 13, 2026340-2
Oct 09, 2026342No prior observation