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Contract OI history

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Nov 20, 2026 EXPIRATION

MSFT $435.00 Put

MSFT261120P00435000

Latest saved OI4,032Oct 23, 2026
Last change+33vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $435.00 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. 4,1732,0860 2026-10-09: 4,173 OI2026-10-13: 3,994 OI2026-10-14: 3,994 OI2026-10-15: 3,988 OI2026-10-16: 3,949 OI2026-10-21: 3,999 OI2026-10-23: 4,032 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, 2026Viewing4,032+33
Oct 21, 20263,999+50
Oct 16, 20263,949-39
Oct 15, 20263,988-6
Oct 14, 20263,9940
Oct 13, 20263,994-179
Oct 09, 20264,173No prior observation