Zero Hedge is a well-known American Zero Hedge is a well-known financial blog site in the United States, mainly by a group of pen names "Tyler Durden". The Zero Hedge is a well-known American financial blog site, mainly by a group of pen names "Tyler Durden" people to provide users with content about Wall Street and financial aspects. The site has exposed the Goldman Sachs investment flash to obtain ordering information rather than proper profit, so that people began to pay attention to the "flash trading" such controversial business practices.