+27 (0) 11 480 8630 info@resam.co.za
Friday, March 1, 2024

Our Team

Antonie Kotze, PhD

Antonie is ResAm’s Chief Executive Officer and Risk Officer, mainly responsible for business operations, risk management and compliance.

Read more He holds a PhD in Theoretical/Mathematical Physics from the University of the Witwatersrand (South Africa). He has more than 26 years' experience as a quantitative analyst and asset manager in the international capital, derivatives and credit markets. The span of his investment management experience consists of all asset classes from listed assets to private equity and unlisted investments. He has been a key individual at etfSA Investment Services since 2010.

Olga Kotze

Olga is ResAm’s Chief Investment Officer with over 30 years’ experience in corporate governance and financial markets.

Read moreShe is a key individual at etfSA Investment Services and a Member of the South African Institute of Financial Markets (SAIFM). Her extensive experience is commended with a lengthy corporate and business career, particularly in treasury, company re-structuring, business principles and turn around strategies. Experienced gained with the South African Reserve Bank regarding exchange control in connection with inwards and outwards investments as well as compiling and implementing treasury policies.
Vimbai Tsopotsa

Vimbai is ResAm’s Chief Business Strategist and Development Officer, who joined the team in 2016.

Read moreShe has extensive experience in research and data analysis, project management and negotiation. In 1998, Vimbai obtained her Master of Business Administration from Africa University and has acquired proven start-up experience as Managing Director of an ICT subsidiary and executive management of non-profit organizations. She is passionate about imparting knowledge through training and coaching.

David Oberholzer, CFA

David is ResAm’s Chief Operating Officer and acts as the Portfolio Manager of ResAm’s equity and listed fixed income portfolios focusing on Social Responsible Investing.

Read morePrior to joining etfSA David was a senior investment analyst at an international hedge fund where he was responsible for building fundamental valuation models and developing quantitative trading strategies. His experience includes disseminating corporate actions and identifying market arbitrage opportunities due to market mispricing through quantitative modelling.

Marguerite Kotze

Marguerite oversees the new business development department at ResAm.

Read moreShe has experience as an account manager and marketing strategist and is passionate about the financial services industry. She majored in politics, philosophy and economics at Stellenbosch University and recently graduated with her honours degree in philosophy, cum laude.