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Contract OI history

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Dec 18, 2026 EXPIRATION

MSFT $450.00 Put

MSFT261218P00450000

Latest saved OI7,781Oct 23, 2026
Last change+63vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $450.00 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. 7,7813,8900 2026-10-09: 7,096 OI2026-10-13: 6,932 OI2026-10-14: 6,932 OI2026-10-15: 7,762 OI2026-10-16: 7,779 OI2026-10-21: 7,718 OI2026-10-23: 7,781 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, 2026Viewing7,781+63
Oct 21, 20267,718-61
Oct 16, 20267,779+17
Oct 15, 20267,762+830
Oct 14, 20266,9320
Oct 13, 20266,932-164
Oct 09, 20267,096No prior observation