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Contract OI history

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Oct 23, 2026 EXPIRATION

MARA $8.50 Put

MARA261023P00008500

Latest saved OI1,456Oct 23, 2026
Last change-932vs 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. 2,3881,1940 2026-10-09: 498 OI2026-10-13: 750 OI2026-10-14: 750 OI2026-10-15: 1,545 OI2026-10-16: 2,217 OI2026-10-21: 2,388 OI2026-10-23: 1,456 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, 2026Viewing1,456-932
Oct 21, 20262,388+171
Oct 16, 20262,217+672
Oct 15, 20261,545+795
Oct 14, 20267500
Oct 13, 2026750+252
Oct 09, 2026498No prior observation