OITracker Cboe delayed data

Contract OI history

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Nov 06, 2026 EXPIRATION

SERV $5.50 Call

SERV261106C00005500

Latest saved OI448Oct 23, 2026
Last change-100vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SERV $5.50 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. 5772880 2026-10-09: 577 OI2026-10-13: 563 OI2026-10-14: 563 OI2026-10-16: 550 OI2026-10-20: 548 OI2026-10-23: 448 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, 2026Viewing448-100
Oct 20, 2026548-2
Oct 16, 2026550-13
Oct 14, 20265630
Oct 13, 2026563-14
Oct 09, 2026577No prior observation