Ken Griffin, Citadel at CNBC's Delivering Alpha, Sept. 28, 2022.Scott Mlyn | CNBCCitadel's billionaire CEO, Ken Griffin, is one of Wall Street's biggest...
Andrew Burton | Getty Images News | Getty ImagesCheck out the companies making headlines in midday trading.Twitter — The social media company soared...
Duolingo Co-founders Severin Hacker (L) and Luis von Ahn (R)DuolingoLanguage-learning app Duolingo filed its IPO prospectus on Monday, and plans to list on the Nasdaq...
James Gorman, chairman and chief executive officer of Morgan Stanley, speaks during a Bloomberg Television interview in Beijing, China, May 30, 2019.Giulia Marchi...