OITracker Cboe delayed data

Contract OI history

Back to GTLB

Dec 18, 2026 EXPIRATION

GTLB $42.50 Call

GTLB261218C00042500

Latest saved OI2,875Oct 23, 2026
Last change-20vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
GTLB $42.50 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 2,9071,4530 2026-10-09: 2,907 OI2026-10-13: 2,895 OI2026-10-14: 2,895 OI2026-10-15: 2,895 OI2026-10-16: 2,895 OI2026-10-21: 2,895 OI2026-10-23: 2,875 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

GTLB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2,875-20
Oct 21, 20262,8950
Oct 16, 20262,8950
Oct 15, 20262,8950
Oct 14, 20262,8950
Oct 13, 20262,895-12
Oct 09, 20262,907No prior observation