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Contract OI history

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Nov 13, 2026 EXPIRATION

MARA $8.50 Put

MARA261113P00008500

Latest saved OI916Oct 23, 2026
Last change-3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MARA $8.50 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. 9194590 2026-10-09: 118 OI2026-10-13: 321 OI2026-10-14: 321 OI2026-10-15: 395 OI2026-10-16: 396 OI2026-10-21: 919 OI2026-10-23: 916 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, 2026Viewing916-3
Oct 21, 2026919+523
Oct 16, 2026396+1
Oct 15, 2026395+74
Oct 14, 20263210
Oct 13, 2026321+203
Oct 09, 2026118No prior observation