Patrick J. Wierckx, CFA, is a Dutch investment professional with more than 25 years of experience in managing institutional equity portfolios. He has held senior positions, including head of Equities at one of the Netherlands' largest asset managers, and is the author of Investing in Hidden Monopolies: Why Customer Loyalty Creates Superior Moats and How You Can Profit. Wierckx is a CFA charterholder, an ESMA-registered Institutional Investment Advisor, and a member of CFA Institute. He holds a master’s degree in business economics.