OITracker Cboe delayed data

Contract OI history

Back to MSFT

Oct 30, 2026 EXPIRATION

MSFT $445.00 Put

MSFT261030P00445000

Latest saved OI583Oct 23, 2026
Last change+14vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $445.00 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. 5832910 2026-10-09: 566 OI2026-10-13: 576 OI2026-10-14: 576 OI2026-10-15: 573 OI2026-10-16: 575 OI2026-10-21: 569 OI2026-10-23: 583 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, 2026Viewing583+14
Oct 21, 2026569-6
Oct 16, 2026575+2
Oct 15, 2026573-3
Oct 14, 20265760
Oct 13, 2026576+10
Oct 09, 2026566No prior observation