OITracker Cboe delayed data

Contract OI history

Back to SERV

Mar 19, 2027 EXPIRATION

SERV $4.00 Call

SERV270319C00004000

Latest saved OI545Oct 23, 2026
Last change+11vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SERV $4.00 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. 5452720 2026-10-09: 289 OI2026-10-13: 375 OI2026-10-14: 471 OI2026-10-16: 489 OI2026-10-20: 534 OI2026-10-23: 545 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, 2026Viewing545+11
Oct 20, 2026534+45
Oct 16, 2026489+18
Oct 14, 2026471+96
Oct 13, 2026375+86
Oct 09, 2026289No prior observation