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Contract OI history

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Jan 15, 2027 EXPIRATION

GTLB $37.50 Put

GTLB270115P00037500

Latest saved OI2,700Oct 23, 2026
Last change+2vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
GTLB $37.50 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. 2,7001,3500 2026-10-09: 2,694 OI2026-10-13: 2,694 OI2026-10-14: 2,694 OI2026-10-15: 2,694 OI2026-10-16: 2,698 OI2026-10-21: 2,698 OI2026-10-23: 2,700 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, 2026Viewing2,700+2
Oct 21, 20262,6980
Oct 16, 20262,698+4
Oct 15, 20262,6940
Oct 14, 20262,6940
Oct 13, 20262,6940
Oct 09, 20262,694No prior observation