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Contract OI history

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Jan 15, 2027 EXPIRATION

MDLN $42.50 Call

MDLN270115C00042500

Latest saved OI231Oct 23, 2026
Last change0vs 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. 2711350 2026-10-09: 271 OI2026-10-13: 271 OI2026-10-14: 271 OI2026-10-15: 271 OI2026-10-16: 231 OI2026-10-21: 231 OI2026-10-23: 231 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, 20262310
Oct 21, 2026Viewing2310
Oct 16, 2026231-40
Oct 15, 20262710
Oct 14, 20262710
Oct 13, 20262710
Oct 09, 2026271No prior observation