OITracker Cboe delayed data

Contract OI history

Back to CNMD

May 21, 2027 EXPIRATION

CNMD $45.00 Call

CNMD270521C00045000

Latest saved OI18Oct 23, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CNMD $45.00 call open interest history 10 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1890 2026-10-02: 8 OI2026-10-05: 18 OI2026-10-06: 18 OI2026-10-07: 18 OI2026-10-08: 18 OI2026-10-13: 18 OI2026-10-14: 18 OI2026-10-16: 18 OI2026-10-20: 18 OI2026-10-23: 18 OI Oct 02, 2026Oct 23, 2026

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

CNMD contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing180
Oct 20, 2026180
Oct 16, 2026180
Oct 14, 2026180
Oct 13, 2026180
Oct 08, 2026180
Oct 07, 2026180
Oct 06, 2026180
Oct 05, 202618+10
Oct 02, 20268No prior observation