Wall Street Maverick
Musings on a Career of Innovation, Derivatives, Credit, and Risk
IN THE WALL STREET boom of the 1980s and 1990s, markets were invented, fortunes were made, and the rules were still being written.
Where others saw risk, Tom Jasper saw opportunity, but never at the expense of his moral compass. Wall Street Maverickis as much the story of Jasper’s contributions to derivatives, swaps, and credit markets as it is the story of a career defined by flexibility, curiosity, and a willingness to operate on the edge. He traversed steep learning curves to thrive in a highly competitive—and sometimes cutthroat—environment.
This is not your typical Wall Street memoir. It is, instead, a firsthand account of how one modern financial market was built, told by a man who helped build it.
At the start of his career, Jasper stumbled into Lower Manhattan and seized the change to transform his well-known high risk tolerance into innovation. He recounts building and running Salomon Brothers’ thriving interest rate swap desk (one of the largest in the industry), helping found and co-chair the ISDA by uniting highly competitive market participants, and later creating new credit default swap distribution models at Primus Guaranty.
Yet innovation never came without danger. Jasper writes candidly about navigating scandal, global emergencies, and the 2008 financial crisis—surviving by staying flexible, surrounding himself with exceptional talent, and never losing his ethical code as he walked the tightrope between risk and respect for the bottom line.
Wall Street Maverick offers a rare, honest look at building a career—and an industry—on the edge between risk and reward.
Thomas Jasper
Thomas Jasper, MBA, is a Risk Magazine “Risk Pioneer” and 2002 Risk Hall of Fame inductee for his profound contributions to the field of risk management. He was instrumental in creating the foundations for today’s $800+ trillion derivatives market, among other successes, during his 40+ year career on Wall Street. A business creator and innovator throughout his career, Jasper was a managing director at Salomon Brothers, where he established and led its interest rate swap business. While at Salomon, he founded and co-chaired the International Swaps and Derivatives Association (ISDA). Jasper went on to become chief executive of Primus Guaranty Ltd., a highly innovative credit default swap business. He is currently a managing partner of Manursing Partners, LLC, serves on several Blackstone Credit and Insurance (BXCI) Fund boards, and continues to give back to his community. He and his wife reside in Connecticut.






