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Contract OI history

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Nov 20, 2026 EXPIRATION

MSFT $445.00 Put

MSFT261120P00445000

Latest saved OI2,036Oct 23, 2026
Last change+22vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $445.00 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. 2,0361,0180 2026-10-09: 1,764 OI2026-10-13: 1,747 OI2026-10-14: 1,747 OI2026-10-15: 1,734 OI2026-10-16: 1,694 OI2026-10-21: 2,014 OI2026-10-23: 2,036 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, 2026Viewing2,036+22
Oct 21, 20262,014+320
Oct 16, 20261,694-40
Oct 15, 20261,734-13
Oct 14, 20261,7470
Oct 13, 20261,747-17
Oct 09, 20261,764No prior observation