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Contract OI history

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Dec 18, 2026 EXPIRATION

MARA $16.00 Put

MARA261218P00016000

Latest saved OI535Oct 23, 2026
Last change-10vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MARA $16.00 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. 5452720 2026-10-09: 442 OI2026-10-13: 501 OI2026-10-14: 501 OI2026-10-15: 500 OI2026-10-16: 500 OI2026-10-21: 545 OI2026-10-23: 535 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, 2026Viewing535-10
Oct 21, 2026545+45
Oct 16, 20265000
Oct 15, 2026500-1
Oct 14, 20265010
Oct 13, 2026501+59
Oct 09, 2026442No prior observation