OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

SERV $6.00 Call

SERV261218C00006000

Latest saved OI467Oct 23, 2026
Last change-13vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SERV $6.00 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. 5172580 2026-10-09: 515 OI2026-10-13: 517 OI2026-10-14: 486 OI2026-10-16: 486 OI2026-10-20: 480 OI2026-10-23: 467 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, 2026Viewing467-13
Oct 20, 2026480-6
Oct 16, 20264860
Oct 14, 2026486-31
Oct 13, 2026517+2
Oct 09, 2026515No prior observation