OITracker Cboe delayed data

Contract OI history

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Apr 16, 2027 EXPIRATION

MAT $17.00 Call

MAT270416C00017000

Latest saved OI239Oct 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 $17.00 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. 2391190 2026-10-09: 231 OI2026-10-13: 231 OI2026-10-14: 231 OI2026-10-15: 231 OI2026-10-16: 231 OI2026-10-21: 239 OI2026-10-23: 239 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, 20262390
Oct 21, 2026Viewing239+8
Oct 16, 20262310
Oct 15, 20262310
Oct 14, 20262310
Oct 13, 20262310
Oct 09, 2026231No prior observation