OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

SERV $8.00 Put

SERV261120P00008000

Latest saved OI1,167Oct 23, 2026
Last change-7vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SERV $8.00 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. 1,2476230 2026-10-09: 1,247 OI2026-10-13: 1,228 OI2026-10-14: 1,229 OI2026-10-16: 1,215 OI2026-10-20: 1,174 OI2026-10-23: 1,167 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, 2026Viewing1,167-7
Oct 20, 20261,174-41
Oct 16, 20261,215-14
Oct 14, 20261,229+1
Oct 13, 20261,228-19
Oct 09, 20261,247No prior observation