OITracker Cboe delayed data

Contract OI history

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Dec 18, 2026 EXPIRATION

SERV $8.00 Put

SERV261218P00008000

Latest saved OI1,032Oct 23, 2026
Last change-100vs 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. 1,1325660 2026-10-09: 1,131 OI2026-10-13: 1,131 OI2026-10-14: 1,132 OI2026-10-16: 1,132 OI2026-10-20: 1,132 OI2026-10-23: 1,032 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, 2026Viewing1,032-100
Oct 20, 20261,1320
Oct 16, 20261,1320
Oct 14, 20261,132+1
Oct 13, 20261,1310
Oct 09, 20261,131No prior observation