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Contract OI history

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Jan 15, 2027 EXPIRATION

MDLN $37.50 Put

MDLN270115P00037500

Latest saved OI26Oct 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 $37.50 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. 26130 2026-10-09: 15 OI2026-10-13: 15 OI2026-10-14: 26 OI2026-10-15: 26 OI2026-10-16: 26 OI2026-10-21: 26 OI2026-10-23: 26 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, 2026260
Oct 21, 2026Viewing260
Oct 16, 2026260
Oct 15, 2026260
Oct 14, 202626+11
Oct 13, 2026150
Oct 09, 202615No prior observation