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Contract OI history

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Nov 20, 2026 EXPIRATION

MAT $20.00 Call

MAT261120C00020000

Latest saved OI13,400Oct 23, 2026
Last change+31vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MAT $20.00 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. 13,4006,7000 2026-10-09: 12 OI2026-10-13: 1,119 OI2026-10-14: 1,119 OI2026-10-15: 1,131 OI2026-10-16: 1,146 OI2026-10-21: 13,369 OI2026-10-23: 13,400 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, 202613,400+31
Oct 21, 2026Viewing13,369+12,223
Oct 16, 20261,146+15
Oct 15, 20261,131+12
Oct 14, 20261,1190
Oct 13, 20261,119+1,107
Oct 09, 202612No prior observation