OITracker Cboe delayed data

Contract OI history

Back to MSFT

Oct 23, 2026 EXPIRATION

MSFT $550.00 Call

MSFT261023C00550000

Latest saved OI7,175Oct 23, 2026
Last change-715vs 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. 7,8903,9450 2026-10-09: 3,533 OI2026-10-13: 3,864 OI2026-10-14: 3,864 OI2026-10-15: 3,908 OI2026-10-16: 4,371 OI2026-10-21: 7,890 OI2026-10-23: 7,175 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, 2026Viewing7,175-715
Oct 21, 20267,890+3,519
Oct 16, 20264,371+463
Oct 15, 20263,908+44
Oct 14, 20263,8640
Oct 13, 20263,864+331
Oct 09, 20263,533No prior observation