OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

MSFT $555.00 Call

MSFT280121C00555000

Latest saved OI450Oct 23, 2026
Last change+28vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MSFT $555.00 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. 4502250 2026-10-09: 423 OI2026-10-13: 416 OI2026-10-14: 416 OI2026-10-15: 415 OI2026-10-16: 413 OI2026-10-21: 422 OI2026-10-23: 450 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, 2026Viewing450+28
Oct 21, 2026422+9
Oct 16, 2026413-2
Oct 15, 2026415-1
Oct 14, 20264160
Oct 13, 2026416-7
Oct 09, 2026423No prior observation