OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

SERV $12.00 Call

SERV280121C00012000

Latest saved OI1,216Oct 23, 2026
Last change+10vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SERV $12.00 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. 1,2336160 2026-10-09: 1,233 OI2026-10-13: 1,223 OI2026-10-14: 1,223 OI2026-10-16: 1,222 OI2026-10-20: 1,206 OI2026-10-23: 1,216 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, 2026Viewing1,216+10
Oct 20, 20261,206-16
Oct 16, 20261,222-1
Oct 14, 20261,2230
Oct 13, 20261,223-10
Oct 09, 20261,233No prior observation