A veteran digital and television journalist, Michelle Fox writes articles for CNBC.com and acts as a liaison between the website and CNBC television shows.
Prior to joining CNBC.com, she spent years on the broadcast side of the business, including an earlier stint at CNBC. Fox has also worked at MSNBC, Court TV and WCBS-TV in New York, where she earned an Emmy award for anticipated breaking news coverage.
Twitter shares are down almost 50 percent this year, but CEO Dick Costolo told CNBC he's not focused on short-term market fluctuations.
Author Michael Lewis is "dead wrong" when he says the market is rigged by high-frequency traders, former Knight Capital CEO Tom Joyce said.
IndyCar driver Helio Castroneves told CNBC he's ready for this Sunday's Indianapolis 500.