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Contract OI history

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Dec 18, 2026 EXPIRATION

GTLB $55.00 Call

GTLB261218C00055000

Latest saved OI539Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
GTLB $55.00 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. 5392690 2026-10-09: 458 OI2026-10-13: 447 OI2026-10-14: 447 OI2026-10-15: 478 OI2026-10-16: 478 OI2026-10-21: 538 OI2026-10-23: 539 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, 2026Viewing539+1
Oct 21, 2026538+60
Oct 16, 20264780
Oct 15, 2026478+31
Oct 14, 20264470
Oct 13, 2026447-11
Oct 09, 2026458No prior observation