OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

SERV $17.00 Call

SERV280121C00017000

Latest saved OI672Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SERV $17.00 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. 6723360 2026-10-09: 660 OI2026-10-13: 665 OI2026-10-14: 666 OI2026-10-16: 667 OI2026-10-20: 672 OI2026-10-23: 672 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, 2026Viewing6720
Oct 20, 2026672+5
Oct 16, 2026667+1
Oct 14, 2026666+1
Oct 13, 2026665+5
Oct 09, 2026660No prior observation