Stifel Financial Corp. announced the appointment of John Spensieri as Head of U.S. Equity Trading, effective immediately. In this role, he is responsible for the daily operation and management of Stifel’s equity trading desk. He is based in the firm’s Baltimore office. Spensieri joined Stifel in 2009 as Head of Alternative Executions, where he drove strategy and implementation for program and algorithmic trading, options, and trading technologies.