After working at "The Wall Street Journal" for 10 years, Winkler left in 1990 and co-founded Bloomberg News to provide financial bulletins that would augment Bloomberg terminal service.
After working at "The Wall Street Journal" for 10 years, Winkler moved to Bloomberg L.P. in 1990. In 1990, Bloomberg approached Winkler about starting Bloomberg Business News to provide financial bulletins to augment Bloomberg terminal service.