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Contract OI history

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Dec 18, 2026 EXPIRATION

MARA $21.00 Call

MARA261218C00021000

Latest saved OI2,434Oct 23, 2026
Last change+37vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MARA $21.00 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. 2,4341,2170 2026-10-09: 1,610 OI2026-10-13: 2,189 OI2026-10-14: 2,189 OI2026-10-15: 2,200 OI2026-10-16: 2,197 OI2026-10-21: 2,397 OI2026-10-23: 2,434 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

MARA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2,434+37
Oct 21, 20262,397+200
Oct 16, 20262,197-3
Oct 15, 20262,200+11
Oct 14, 20262,1890
Oct 13, 20262,189+579
Oct 09, 20261,610No prior observation