OITracker Cboe delayed data

Contract OI history

Back to MSFT

Dec 18, 2026 EXPIRATION

MSFT $550.00 Call

MSFT261218C00550000

Latest saved OI12,689Oct 23, 2026
Last change+1,030vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $550.00 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. 12,6896,3440 2026-10-09: 11,640 OI2026-10-13: 11,649 OI2026-10-14: 11,649 OI2026-10-15: 11,616 OI2026-10-16: 11,526 OI2026-10-21: 11,659 OI2026-10-23: 12,689 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, 2026Viewing12,689+1,030
Oct 21, 202611,659+133
Oct 16, 202611,526-90
Oct 15, 202611,616-33
Oct 14, 202611,6490
Oct 13, 202611,649+9
Oct 09, 202611,640No prior observation