OITracker Cboe delayed data

Contract OI history

Back to SERV

Nov 27, 2026 EXPIRATION

SERV $8.50 Put

SERV261127P00008500

Latest saved OI462Oct 23, 2026
Last change+33vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
SERV $8.50 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. 4622310 2026-10-09: 153 OI2026-10-13: 259 OI2026-10-14: 259 OI2026-10-16: 367 OI2026-10-20: 429 OI2026-10-23: 462 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, 2026Viewing462+33
Oct 20, 2026429+62
Oct 16, 2026367+108
Oct 14, 20262590
Oct 13, 2026259+106
Oct 09, 2026153No prior observation