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Contract OI history

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Dec 18, 2026 EXPIRATION

GTLB $27.50 Put

GTLB261218P00027500

Latest saved OI494Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
GTLB $27.50 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 4972480 2026-10-09: 497 OI2026-10-13: 496 OI2026-10-14: 496 OI2026-10-15: 496 OI2026-10-16: 494 OI2026-10-21: 494 OI2026-10-23: 494 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, 2026Viewing4940
Oct 21, 20264940
Oct 16, 2026494-2
Oct 15, 20264960
Oct 14, 20264960
Oct 13, 2026496-1
Oct 09, 2026497No prior observation