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Contract OI history

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Jan 15, 2027 EXPIRATION

MSFT $250.00 Put

MSFT270115P00250000

Latest saved OI3,433Oct 23, 2026
Last change-28vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $250.00 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. 3,5641,7820 2026-10-09: 3,564 OI2026-10-13: 3,456 OI2026-10-14: 3,456 OI2026-10-15: 3,457 OI2026-10-16: 3,458 OI2026-10-21: 3,461 OI2026-10-23: 3,433 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, 2026Viewing3,433-28
Oct 21, 20263,461+3
Oct 16, 20263,458+1
Oct 15, 20263,457+1
Oct 14, 20263,4560
Oct 13, 20263,456-108
Oct 09, 20263,564No prior observation