OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

SERV $5.00 Put

SERV270319P00005000

Latest saved OI1,827Oct 23, 2026
Last change+1vs 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. 1,8279130 2026-10-09: 1,731 OI2026-10-13: 1,766 OI2026-10-14: 1,824 OI2026-10-16: 1,826 OI2026-10-20: 1,826 OI2026-10-23: 1,827 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, 2026Viewing1,827+1
Oct 20, 20261,8260
Oct 16, 20261,826+2
Oct 14, 20261,824+58
Oct 13, 20261,766+35
Oct 09, 20261,731No prior observation