OITracker Cboe delayed data

Contract OI history

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Jan 19, 2029 EXPIRATION

SERV $5.00 Put

SERV290119P00005000

Latest saved OI396Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SERV $5.00 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. 3961980 2026-10-09: 363 OI2026-10-13: 392 OI2026-10-14: 392 OI2026-10-16: 396 OI2026-10-20: 396 OI2026-10-23: 396 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, 2026Viewing3960
Oct 20, 20263960
Oct 16, 2026396+4
Oct 14, 20263920
Oct 13, 2026392+29
Oct 09, 2026363No prior observation