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Contract OI history

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Oct 15, 2027 EXPIRATION

MARA $20.00 Call

MARA271015C00020000

Latest saved OI959Oct 23, 2026
Last change-2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MARA $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. 9614800 2026-10-09: 883 OI2026-10-13: 883 OI2026-10-14: 883 OI2026-10-15: 885 OI2026-10-16: 885 OI2026-10-21: 961 OI2026-10-23: 959 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, 2026Viewing959-2
Oct 21, 2026961+76
Oct 16, 20268850
Oct 15, 2026885+2
Oct 14, 20268830
Oct 13, 20268830
Oct 09, 2026883No prior observation