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Contract OI history

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Mar 19, 2027 EXPIRATION

MED $12.50 Call

MED270319C00012500

Latest saved OI140Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
MED $12.50 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2271130 2026-10-02: 227 OI2026-10-05: 227 OI2026-10-06: 227 OI2026-10-07: 227 OI2026-10-08: 227 OI2026-10-09: 227 OI2026-10-13: 141 OI2026-10-14: 141 OI2026-10-16: 140 OI2026-10-20: 140 OI2026-10-23: 140 OI Oct 02, 2026Oct 23, 2026

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

MED contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1400
Oct 20, 20261400
Oct 16, 2026140-1
Oct 14, 20261410
Oct 13, 2026141-86
Oct 09, 20262270
Oct 08, 20262270
Oct 07, 20262270
Oct 06, 20262270
Oct 05, 20262270
Oct 02, 2026227No prior observation