OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

MAT $10.00 Call

MAT280121C00010000

Latest saved OI381Oct 23, 2026
Last change-6vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MAT $10.00 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. 3871930 2026-10-09: 387 OI2026-10-13: 387 OI2026-10-14: 387 OI2026-10-15: 387 OI2026-10-16: 387 OI2026-10-21: 387 OI2026-10-23: 381 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

MAT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026381-6
Oct 21, 2026Viewing3870
Oct 16, 20263870
Oct 15, 20263870
Oct 14, 20263870
Oct 13, 20263870
Oct 09, 2026387No prior observation