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Contract OI history

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Jun 16, 2028 EXPIRATION

MSFT $450.00 Put

MSFT280616P00450000

Latest saved OI363Oct 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. 3871930 2026-10-09: 385 OI2026-10-13: 387 OI2026-10-14: 387 OI2026-10-15: 358 OI2026-10-16: 358 OI2026-10-21: 358 OI2026-10-23: 363 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, 2026Viewing363+5
Oct 21, 20263580
Oct 16, 20263580
Oct 15, 2026358-29
Oct 14, 20263870
Oct 13, 2026387+2
Oct 09, 2026385No prior observation