Flash Boys: A Wall Street Revolt is a book by the American writer Michael Lewis,[1] published by W. W. Norton & Company on March 31, 2014. The book is a non-fiction investigation into the phenomenon of high-frequency trading (HFT) in the US financial market, with the author interviewing and collecting the experiences of several individuals working on Wall Street.[2] Lewis concludes that HFT is used as a method to front run orders placed by investors. He goes further to suggest that broad technological changes and unethical trading practices have transformed the U.S. stock market from "the world's most public, most democratic, financial market" into a "rigged" market.