OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

MAT $16.00 Call

MAT261120C00016000

Latest saved OI2,860Oct 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 $16.00 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. 2,8601,4300 2026-10-09: 2,548 OI2026-10-13: 2,559 OI2026-10-14: 2,559 OI2026-10-15: 2,656 OI2026-10-16: 2,656 OI2026-10-21: 2,854 OI2026-10-23: 2,860 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, 20262,860+6
Oct 21, 2026Viewing2,854+198
Oct 16, 20262,6560
Oct 15, 20262,656+97
Oct 14, 20262,5590
Oct 13, 20262,559+11
Oct 09, 20262,548No prior observation