OITracker Cboe delayed data

Contract OI history

Back to MSFT

Dec 18, 2026 EXPIRATION

MSFT $490.00 Call

MSFT261218C00490000

Latest saved OI4,161Oct 23, 2026
Last change-8vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $490.00 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. 4,1692,0840 2026-10-09: 3,928 OI2026-10-13: 3,864 OI2026-10-14: 3,864 OI2026-10-15: 3,865 OI2026-10-16: 3,833 OI2026-10-21: 4,169 OI2026-10-23: 4,161 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, 2026Viewing4,161-8
Oct 21, 20264,169+336
Oct 16, 20263,833-32
Oct 15, 20263,865+1
Oct 14, 20263,8640
Oct 13, 20263,864-64
Oct 09, 20263,928No prior observation