Hans was the Anne Marie and Thomas B. Walker Professor of Finance, emeritus at the Owen Graduate School of Management at Vanderbilt University. Through decades in academia, industry and government, Hans was most proud of the generations of finance students he educated and inspired. He is best known for developing and testing the put-call parity relation for option prices, modeling and testing the behavior of securities markets dealers, his work on program trading and the “triple witching hour” and his work on the sources and components of the bid-ask spread.
Hans graduated from Swarthmore College in 1961 followed by MBA (1963) and PhD (1966) degrees from the University of Chicago. From 1966-1980 he was a faculty member at the Wharton School at the University of Pennsylvania before joining the faculty at Vanderbilt’s Owen School in 1980. Hans was a respected and prolific academic whose leadership and research were instrumental in raising the national profile of Owen. He authored several books and over 60 published articles and served on the editorial board of a variety of financial journals. As founding director of the Financial Markets Research Center at Owen, Hans fostered research among financial markets scholars around the globe and brought together countless financial authorities from academia, business concerns, and government agencies to discuss timely and critical issues.
Hans served as President of the Western Finance Association (1992-93), President of the American Finance Association (1999-2000) and on various government and industry advisory panels, including the Quality of Markets Committee of the NASD formed to study the 1987 stock market crash. He was a member of the Economic Advisory Board for the NASD, a public governor of the Pacific Stock Exchange, and a public director of the Options Clearing Corporation, Interactive Brokers Group and the Futures Industry Association. He received numerous honors and awards including Vanderbilt’s 1996 Earl Sutherland Prize for Achievement in Research across all fields; the 1994 Chicago Board of Trade Earle M. Combs, Jr. Award for leadership and contributions to the futures industry; and an honorary doctorate from Goethe University in Frankfurt, Germany.
Above all these accomplishments, Hans was a man of humility, integrity and composure who never let the pressures of work interfere with his family life or his nightly eight hours of sleep.
Hans is survived by his wife Margie Stoll, children Erica Stoll Hammack, Andy Stoll and Kevin Stoll, six grandchildren, and siblings Dagi Stoll Murphy and Michael Stoll. The family would like to thank all of Hans’ caregivers for their support and friendship.
A Celebration of Life will be held in Nashville at a future date.
In lieu of flowers, memorial contributions can be made to the Peterson Foundation for Parkinson’s at https://petersonforparkinsons.org or to the Parkinson’s Foundation at https://secure3.convio.net/prkorg/site/SPageNavigator/2017_donate_form_2.html?tab=tribute&_ga=2.138928819.1644666061.1584890679-943346942.1584802239.
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