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Contract OI history

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Oct 23, 2026 EXPIRATION

MSFT $365.00 Put

MSFT261023P00365000

Latest saved OI36Oct 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 $365.00 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. 36180 2026-10-09: 23 OI2026-10-13: 23 OI2026-10-14: 23 OI2026-10-15: 23 OI2026-10-16: 23 OI2026-10-21: 36 OI2026-10-23: 36 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, 2026Viewing360
Oct 21, 202636+13
Oct 16, 2026230
Oct 15, 2026230
Oct 14, 2026230
Oct 13, 2026230
Oct 09, 202623No prior observation