VKTX Slides on Profit-Taking
No clear news explains this move, and it far outpaces the flat S&P 500, so this looks like technical selling or profit-taking after the stock's recent push toward $50, and we will continue to monitor the situation.
Sources: https://tickeron.com/blogs/viking-therapeutics-vktx-and-the-push-toward-50-what-investors-should-know/
Sources
Ezbrisk weighs each event against the market reaction and publishes a verdict with an overreaction reading. How the methodology works