OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

MSFT $550.00 Call

MSFT280121C00550000

Latest saved OI3,586Oct 23, 2026
Last change-7vs 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. 3,6011,8000 2026-10-09: 3,601 OI2026-10-13: 3,557 OI2026-10-14: 3,557 OI2026-10-15: 3,565 OI2026-10-16: 3,569 OI2026-10-21: 3,593 OI2026-10-23: 3,586 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, 2026Viewing3,586-7
Oct 21, 20263,593+24
Oct 16, 20263,569+4
Oct 15, 20263,565+8
Oct 14, 20263,5570
Oct 13, 20263,557-44
Oct 09, 20263,601No prior observation