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Contract OI history

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Jun 17, 2027 EXPIRATION

MRTN $7.50 Put

MRTN270617P00007500

Latest saved OI155Oct 23, 2026
Last change+155vs previous saved observation
Saved market days3Oct 15, 2026 onwards
Daily open interest Hover a point for its date and OI
MRTN $7.50 put open interest history 3 saved observations from 2026-10-15 to 2026-10-23. Exact values and changes are listed in the table below. 155770 2026-10-15: 0 OI2026-10-20: 0 OI2026-10-23: 155 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, 2026155+155
Oct 20, 2026Viewing00
Oct 15, 20260No prior observation