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Contract OI history

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Jan 15, 2027 EXPIRATION

MSFT $480.00 Put

MSFT270115P00480000

Latest saved OI6,505Oct 23, 2026
Last change+181vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $480.00 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. 7,0243,5120 2026-10-09: 7,024 OI2026-10-13: 6,190 OI2026-10-14: 6,190 OI2026-10-15: 6,175 OI2026-10-16: 6,184 OI2026-10-21: 6,324 OI2026-10-23: 6,505 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, 2026Viewing6,505+181
Oct 21, 20266,324+140
Oct 16, 20266,184+9
Oct 15, 20266,175-15
Oct 14, 20266,1900
Oct 13, 20266,190-834
Oct 09, 20267,024No prior observation