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Contract OI history

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Nov 20, 2026 EXPIRATION

MSFT $375.00 Put

MSFT261120P00375000

Latest saved OI1,162Oct 23, 2026
Last change+29vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $375.00 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. 1,1625810 2026-10-09: 1,135 OI2026-10-13: 1,133 OI2026-10-14: 1,133 OI2026-10-15: 1,133 OI2026-10-16: 1,132 OI2026-10-21: 1,133 OI2026-10-23: 1,162 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, 2026Viewing1,162+29
Oct 21, 20261,133+1
Oct 16, 20261,132-1
Oct 15, 20261,1330
Oct 14, 20261,1330
Oct 13, 20261,133-2
Oct 09, 20261,135No prior observation