Shares of Blue Apron Holding Inc (NYSE: APRN) were surging today after JPMorgan Chase disclosed that it had increased its stake in the struggling meal-kit provider. In a filing, the big bank revealed that it now owns 13.8% of Blue Apron stock, up from 11.2% in July. As of 12:24 p.m. EST, shares were up 2.8%. Image source: Getty Images.It's not surprising to see Blue Apron moving higher on such news, especially considering the company's recent troubles, as a vote of confidence from JPMorgan goes a long way to persuading retail investors that the stock may have a better future.