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Contract OI history

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Nov 06, 2026 EXPIRATION

MSFT $440.00 Put

MSFT261106P00440000

Latest saved OI2,589Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $440.00 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. 2,5991,2990 2026-10-09: 2,592 OI2026-10-13: 2,593 OI2026-10-14: 2,593 OI2026-10-15: 2,599 OI2026-10-16: 2,599 OI2026-10-21: 2,589 OI2026-10-23: 2,589 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, 2026Viewing2,5890
Oct 21, 20262,589-10
Oct 16, 20262,5990
Oct 15, 20262,599+6
Oct 14, 20262,5930
Oct 13, 20262,593+1
Oct 09, 20262,592No prior observation