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Contract OI history

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Dec 15, 2028 EXPIRATION

MSFT $610.00 Put

MSFT281215P00610000

Latest saved OI222Oct 23, 2026
Last change+7vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $610.00 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. 2351170 2026-10-09: 235 OI2026-10-13: 225 OI2026-10-14: 225 OI2026-10-15: 225 OI2026-10-16: 215 OI2026-10-21: 215 OI2026-10-23: 222 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, 2026Viewing222+7
Oct 21, 20262150
Oct 16, 2026215-10
Oct 15, 20262250
Oct 14, 20262250
Oct 13, 2026225-10
Oct 09, 2026235No prior observation