OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

MAT $15.00 Call

MAT280121C00015000

Latest saved OI304Oct 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 $15.00 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. 3371680 2026-10-09: 337 OI2026-10-13: 337 OI2026-10-14: 337 OI2026-10-15: 335 OI2026-10-16: 305 OI2026-10-21: 304 OI2026-10-23: 304 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, 2026Viewing3040
Oct 21, 2026304-1
Oct 16, 2026305-30
Oct 15, 2026335-2
Oct 14, 20263370
Oct 13, 20263370
Oct 09, 2026337No prior observation