In this business classic—now with a new afterword in which the author draws parallels to the recent financial crisis—Roger Lowenstein captures the gripping roller-coaster ride of Long-Term Capital Management. Drawing on confidential internal memos and interviews with dozens of key players, Lowenstein explains not just how the fund made and lost its money but also how the personalities of Long-Term’s partners, the arrogance of their mathematical certainties, and the culture of Wall Street itself contributed to both their rise and their fall. When Genius Failed is the cautionary financial tale of our time, the gripping saga of what happened when an elite group of investors believed they could actually deconstruct risk and use virtually limitless leverage to create limitless wealth. In Roger Lowenstein's hands, it is a brilliant tale peppered with fast money, vivid characters, and high drama.