OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

SERV $15.00 Call

SERV270115C00015000

Latest saved OI3,142Oct 23, 2026
Last change-43vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SERV $15.00 call open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 3,1851,5920 2026-10-09: 3,175 OI2026-10-13: 3,184 OI2026-10-14: 3,185 OI2026-10-16: 3,185 OI2026-10-20: 3,185 OI2026-10-23: 3,142 OI Oct 09, 2026Oct 23, 2026

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

SERV contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3,142-43
Oct 20, 20263,1850
Oct 16, 20263,1850
Oct 14, 20263,185+1
Oct 13, 20263,184+9
Oct 09, 20263,175No prior observation