Hans Reiner Stoll (December 11, 1939, in Regensburg, Germany -[1] March 20, 2020, in Nashville, TN) [2] was the Anne Marie and Thomas B. Walker, Jr.
Professor of Finance and Director of the Financial Markets Research Center at Vanderbilt University's Owen Graduate School of Management.
He was a Public Director of Interactive Brokers Group, Inc. Stoll is credited with the first description in the "modern" literature of the put–call parity option pricing relationship ("The Relationship between Put and Call Option Prices").
He has published several books and more than 60 articles, and is, or has been, associate editor of several finance journals.
Stoll was a visiting professor at the Board of Governors of the Federal Reserve System in 1968–69.