OITracker Cboe delayed data

Contract OI history

Back to MSFT

Dec 18, 2026 EXPIRATION

MSFT $375.00 Call

MSFT261218C00375000

Latest saved OI4,273Oct 23, 2026
Last change-5vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $375.00 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. 4,3062,1530 2026-10-09: 4,306 OI2026-10-13: 4,301 OI2026-10-14: 4,301 OI2026-10-15: 4,281 OI2026-10-16: 4,281 OI2026-10-21: 4,278 OI2026-10-23: 4,273 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, 2026Viewing4,273-5
Oct 21, 20264,278-3
Oct 16, 20264,2810
Oct 15, 20264,281-20
Oct 14, 20264,3010
Oct 13, 20264,301-5
Oct 09, 20264,306No prior observation