OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

MED $12.50 Call

MED261120C00012500

Latest saved OI528Oct 23, 2026
Last change+3vs 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. 5282640 2026-10-02: 455 OI2026-10-05: 455 OI2026-10-06: 456 OI2026-10-07: 457 OI2026-10-08: 462 OI2026-10-09: 462 OI2026-10-13: 463 OI2026-10-14: 463 OI2026-10-16: 477 OI2026-10-20: 525 OI2026-10-23: 528 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, 2026Viewing528+3
Oct 20, 2026525+48
Oct 16, 2026477+14
Oct 14, 20264630
Oct 13, 2026463+1
Oct 09, 20264620
Oct 08, 2026462+5
Oct 07, 2026457+1
Oct 06, 2026456+1
Oct 05, 20264550
Oct 02, 2026455No prior observation