OITracker Cboe delayed data

Contract OI history

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Oct 23, 2026 EXPIRATION

SERV $3.00 Put

SERV261023P00003000

Latest saved OI315Oct 23, 2026
Last change+70vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SERV $3.00 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. 3151570 2026-10-09: 3 OI2026-10-13: 3 OI2026-10-14: 3 OI2026-10-16: 19 OI2026-10-20: 245 OI2026-10-23: 315 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, 2026Viewing315+70
Oct 20, 2026245+226
Oct 16, 202619+16
Oct 14, 202630
Oct 13, 202630
Oct 09, 20263No prior observation