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Contract OI history

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Jun 17, 2027 EXPIRATION

MSFT $300.00 Put

MSFT270617P00300000

Latest saved OI6,827Oct 23, 2026
Last change-5vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $300.00 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. 6,8513,4250 2026-10-09: 6,851 OI2026-10-13: 6,834 OI2026-10-14: 6,834 OI2026-10-15: 6,834 OI2026-10-16: 6,831 OI2026-10-21: 6,832 OI2026-10-23: 6,827 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, 2026Viewing6,827-5
Oct 21, 20266,832+1
Oct 16, 20266,831-3
Oct 15, 20266,8340
Oct 14, 20266,8340
Oct 13, 20266,834-17
Oct 09, 20266,851No prior observation