OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

MAT $19.00 Call

MAT261218C00019000

Latest saved OI768Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MAT $19.00 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. 7683840 2026-10-09: 681 OI2026-10-13: 679 OI2026-10-14: 679 OI2026-10-15: 726 OI2026-10-16: 761 OI2026-10-21: 768 OI2026-10-23: 768 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, 20267680
Oct 21, 2026Viewing768+7
Oct 16, 2026761+35
Oct 15, 2026726+47
Oct 14, 20266790
Oct 13, 2026679-2
Oct 09, 2026681No prior observation