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Contract OI history

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Jan 15, 2027 EXPIRATION

MSFT $390.00 Put

MSFT270115P00390000

Latest saved OI7,889Oct 23, 2026
Last change-93vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $390.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 7,9823,9910 2026-10-09: 5,849 OI2026-10-13: 7,866 OI2026-10-14: 7,866 OI2026-10-15: 7,880 OI2026-10-16: 7,889 OI2026-10-21: 7,982 OI2026-10-23: 7,889 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, 2026Viewing7,889-93
Oct 21, 20267,982+93
Oct 16, 20267,889+9
Oct 15, 20267,880+14
Oct 14, 20267,8660
Oct 13, 20267,866+2,017
Oct 09, 20265,849No prior observation