Rallybio Corporation (RLYB:NASDAQ) closed at $15.93 on October 27, 2026, down 3.66% on the day. The stock trades 9.4% below its 52-week high of $17.57 and 334.1% above its 52-week low of $3.67. Over the past year, it gained 222.2%. Rallybio Corporation is part of the Health Care sector.
In 252 trading sessions since October 27, 2025, RLYB closed higher on 121 days (48%). Its best day was May 4, 2026 (+50.05%) and its worst was February 17, 2026 (-10.17%). The stock moved 10% or more in a single session 9 times. It opened at least 5% above the previous day's high 3 times.
Rallybio Corp is a biopharmaceutical company committed to identifying and accelerating the development of life-transforming therapies for patients with severe and rare disorders. Its lead program is for the prevention of fetal and neonatal alloimmune thrombocytopenia, a potentially life-threatening rare disease that can cause uncontrolled bleeding in fetuses and newborns.
Find more stocks like RLYB with the Spikes, Gaps, Breakouts and Performance Tracker scanners.
Based on end-of-day data. For information only, not investment advice.