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Contract OI history

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Mar 19, 2027 EXPIRATION

MSFT $350.00 Put

MSFT270319P00350000

Latest saved OI8,912Oct 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 $350.00 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. 9,0874,5430 2026-10-09: 8,858 OI2026-10-13: 9,086 OI2026-10-14: 9,086 OI2026-10-15: 9,087 OI2026-10-16: 9,080 OI2026-10-21: 8,916 OI2026-10-23: 8,912 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, 2026Viewing8,912-4
Oct 21, 20268,916-164
Oct 16, 20269,080-7
Oct 15, 20269,087+1
Oct 14, 20269,0860
Oct 13, 20269,086+228
Oct 09, 20268,858No prior observation