OITracker Cboe delayed data

Contract OI history

Back to SERV

Jan 21, 2028 EXPIRATION

SERV $8.00 Call

SERV280121C00008000

Latest saved OI7,559Oct 23, 2026
Last change+299vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SERV $8.00 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. 7,5593,7790 2026-10-09: 4,911 OI2026-10-13: 5,309 OI2026-10-14: 5,342 OI2026-10-16: 5,357 OI2026-10-20: 7,260 OI2026-10-23: 7,559 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, 2026Viewing7,559+299
Oct 20, 20267,260+1,903
Oct 16, 20265,357+15
Oct 14, 20265,342+33
Oct 13, 20265,309+398
Oct 09, 20264,911No prior observation