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Juul's valuation tumbles 35% as CDC issues new vaping warning

According to the Wall Street Journal a hedge fund that was an early investor in Juul recently wrote down its stake in the company to value Juul at just $24 billion dollars, a 35% drop from the $38 billion dollar valuation the company boasted just about a year ago when tobacco giant Altria paid up for a minority stake in the vaping giant. Yahoo Finance's Zack Guzman and Emily McCormick discuss with Barron's Senior Writer Alexandra Scaggs.