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Contract OI history

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Nov 20, 2026 EXPIRATION

MARA $21.00 Call

MARA261120C00021000

Latest saved OI840Oct 23, 2026
Last change+49vs 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. 1,4717350 2026-10-09: 315 OI2026-10-13: 926 OI2026-10-14: 926 OI2026-10-15: 1,471 OI2026-10-16: 939 OI2026-10-21: 791 OI2026-10-23: 840 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, 2026Viewing840+49
Oct 21, 2026791-148
Oct 16, 2026939-532
Oct 15, 20261,471+545
Oct 14, 20269260
Oct 13, 2026926+611
Oct 09, 2026315No prior observation