OITracker Cboe delayed data

Contract OI history

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Nov 06, 2026 EXPIRATION

SERV $8.50 Put

SERV261106P00008500

Latest saved OI960Oct 23, 2026
Last change-22vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SERV $8.50 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 1,0045020 2026-10-09: 886 OI2026-10-13: 998 OI2026-10-14: 1,004 OI2026-10-16: 956 OI2026-10-20: 982 OI2026-10-23: 960 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, 2026Viewing960-22
Oct 20, 2026982+26
Oct 16, 2026956-48
Oct 14, 20261,004+6
Oct 13, 2026998+112
Oct 09, 2026886No prior observation