OITracker Cboe delayed data

Contract OI history

Back to MSFT

Dec 18, 2026 EXPIRATION

MSFT $585.00 Call

MSFT261218C00585000

Latest saved OI4,063Oct 23, 2026
Last change+12vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $585.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 4,0632,0310 2026-10-09: 2,574 OI2026-10-13: 2,703 OI2026-10-14: 2,703 OI2026-10-15: 2,698 OI2026-10-16: 2,631 OI2026-10-21: 4,051 OI2026-10-23: 4,063 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, 2026Viewing4,063+12
Oct 21, 20264,051+1,420
Oct 16, 20262,631-67
Oct 15, 20262,698-5
Oct 14, 20262,7030
Oct 13, 20262,703+129
Oct 09, 20262,574No prior observation