OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

SERV $3.00 Call

SERV270319C00003000

Latest saved OI280Oct 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 $3.00 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. 2801400 2026-10-09: 195 OI2026-10-13: 236 OI2026-10-14: 236 OI2026-10-16: 241 OI2026-10-20: 279 OI2026-10-23: 280 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, 2026Viewing280+1
Oct 20, 2026279+38
Oct 16, 2026241+5
Oct 14, 20262360
Oct 13, 2026236+41
Oct 09, 2026195No prior observation