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Contract OI history

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Nov 13, 2026 EXPIRATION

MSFT $585.00 Put

MSFT261113P00585000

Latest saved OI22Oct 23, 2026
Last change+4vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $585.00 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. 22110 2026-10-09: 0 OI2026-10-13: 18 OI2026-10-14: 18 OI2026-10-15: 18 OI2026-10-16: 18 OI2026-10-21: 18 OI2026-10-23: 22 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, 2026Viewing22+4
Oct 21, 2026180
Oct 16, 2026180
Oct 15, 2026180
Oct 14, 2026180
Oct 13, 202618+18
Oct 09, 20260No prior observation