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Contract OI history

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Dec 15, 2028 EXPIRATION

MSFT $185.00 Put

MSFT281215P00185000

Latest saved OI1,476Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $185.00 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. 1,6478230 2026-10-09: 1,647 OI2026-10-13: 1,507 OI2026-10-14: 1,507 OI2026-10-15: 1,516 OI2026-10-16: 1,513 OI2026-10-21: 1,476 OI2026-10-23: 1,476 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, 2026Viewing1,4760
Oct 21, 20261,476-37
Oct 16, 20261,513-3
Oct 15, 20261,516+9
Oct 14, 20261,5070
Oct 13, 20261,507-140
Oct 09, 20261,647No prior observation