OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

MSFT $440.00 Call

MSFT280121C00440000

Latest saved OI634Oct 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 $440.00 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. 6393190 2026-10-09: 612 OI2026-10-13: 612 OI2026-10-14: 612 OI2026-10-15: 612 OI2026-10-16: 609 OI2026-10-21: 639 OI2026-10-23: 634 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, 2026Viewing634-5
Oct 21, 2026639+30
Oct 16, 2026609-3
Oct 15, 20266120
Oct 14, 20266120
Oct 13, 20266120
Oct 09, 2026612No prior observation