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Contract OI history

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Dec 18, 2026 EXPIRATION

MAT $14.00 Put

MAT261218P00014000

Latest saved OI119Oct 23, 2026
Last change+30vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MAT $14.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 119590 2026-10-09: 95 OI2026-10-13: 89 OI2026-10-14: 89 OI2026-10-15: 89 OI2026-10-16: 89 OI2026-10-21: 89 OI2026-10-23: 119 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, 2026Viewing119+30
Oct 21, 2026890
Oct 16, 2026890
Oct 15, 2026890
Oct 14, 2026890
Oct 13, 202689-6
Oct 09, 202695No prior observation