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Contract OI history

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Dec 18, 2026 EXPIRATION

MAT $17.00 Call

MAT261218C00017000

Latest saved OI21,589Oct 23, 2026
Last change+571vs 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. 21,58910,7940 2026-10-09: 309 OI2026-10-13: 16,946 OI2026-10-14: 16,946 OI2026-10-15: 20,999 OI2026-10-16: 20,986 OI2026-10-21: 21,018 OI2026-10-23: 21,589 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, 2026Viewing21,589+571
Oct 21, 202621,018+32
Oct 16, 202620,986-13
Oct 15, 202620,999+4,053
Oct 14, 202616,9460
Oct 13, 202616,946+16,637
Oct 09, 2026309No prior observation