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Contract OI history

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Nov 20, 2026 EXPIRATION

MDLN $42.50 Call

MDLN261120C00042500

Latest saved OI191Oct 23, 2026
Last change-2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
MDLN $42.50 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 193960 2026-10-09: 185 OI2026-10-13: 185 OI2026-10-14: 185 OI2026-10-15: 186 OI2026-10-16: 189 OI2026-10-21: 193 OI2026-10-23: 191 OI Oct 09, 2026Oct 23, 2026

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

MDLN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026191-2
Oct 21, 2026Viewing193+4
Oct 16, 2026189+3
Oct 15, 2026186+1
Oct 14, 20261850
Oct 13, 20261850
Oct 09, 2026185No prior observation