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Viking Therapeutics Stock Soars 36% on Weight-Loss Drug Data. Why It's Not Too Late to Buy the Stock.

The Motley Fool | Sep 30, 2026 5:00 PM EDT

Investors looking to capitalize on the rapidly expanding weight loss drug market have increasingly more options. Eli Lilly (NYSE: LLY) and Novo Nordisk (NYSE: NVO) are still the leaders, but several other drugmakers are making significant clinical headway. One of them is Viking Therapeutics (NASDAQ: VKTX) , a clinical-stage biotech. Viking Therapeutics was having a fairly uneventful year until recently, when it posted highly encouraging results from a clinical trial, sending the stock soaring by more than 30% in one day. Let's look deeper into these results and determine what they could mean for Viking's prospects. Image source: The Motley Fool. Let's start with some background on how GLP-1-based weight loss medicines work. By mimicking naturally occurring hormones such as GLP-1, which promotes satiety, these medications help patients feel fuller for longer, leading them to eat less and aiding weight loss. Continue reading

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