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Contract OI history

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Dec 15, 2028 EXPIRATION

MSFT $450.00 Put

MSFT281215P00450000

Latest saved OI1,593Oct 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 $450.00 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. 1,5987990 2026-10-09: 1,598 OI2026-10-13: 1,598 OI2026-10-14: 1,598 OI2026-10-15: 1,598 OI2026-10-16: 1,598 OI2026-10-21: 1,598 OI2026-10-23: 1,593 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, 2026Viewing1,593-5
Oct 21, 20261,5980
Oct 16, 20261,5980
Oct 15, 20261,5980
Oct 14, 20261,5980
Oct 13, 20261,5980
Oct 09, 20261,598No prior observation