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Contract OI history

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Jun 17, 2027 EXPIRATION

MRTN $17.50 Call

MRTN270617C00017500

Latest saved OI187Oct 23, 2026
Last change+126vs previous saved observation
Saved market days3Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
MRTN $17.50 call open interest history 3 saved observations from 2026-10-15 to 2026-10-23. Exact values and changes are listed in the table below. 187930 2026-10-15: 0 OI2026-10-20: 61 OI2026-10-23: 187 OI Oct 15, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

MRTN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026187+126
Oct 20, 2026Viewing61+61
Oct 15, 20260No prior observation