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Contract OI history

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Jan 15, 2027 EXPIRATION

GALT $2.50 Put

GALT270115P00002500

Latest saved OI908Oct 23, 2026
Last change-3vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
GALT $2.50 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 9114550 2026-10-08: 834 OI2026-10-09: 856 OI2026-10-13: 866 OI2026-10-14: 866 OI2026-10-16: 866 OI2026-10-20: 911 OI2026-10-23: 908 OI Oct 08, 2026Oct 23, 2026

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

GALT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026908-3
Oct 20, 2026Viewing911+45
Oct 16, 20268660
Oct 14, 20268660
Oct 13, 2026866+10
Oct 09, 2026856+22
Oct 08, 2026834No prior observation