OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

SERV $32.00 Call

SERV280121C00032000

Latest saved OI874Oct 23, 2026
Last change+1vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SERV $32.00 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. 8744370 2026-10-09: 862 OI2026-10-13: 866 OI2026-10-14: 857 OI2026-10-16: 857 OI2026-10-20: 873 OI2026-10-23: 874 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, 2026Viewing874+1
Oct 20, 2026873+16
Oct 16, 20268570
Oct 14, 2026857-9
Oct 13, 2026866+4
Oct 09, 2026862No prior observation