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Jim M. AronitzJim M. Aronitz, MBA, CFA, P.Eng.


Jim has thirty years of investment management and financial analysis experience. He has been the President of Hemisphere Capital Management since founding the company in 1993. He is a former equity portfolio manager with the Investment Corporation of Saskatchewan and a former mutual fund manager with Metropolitan Trust. Jim earned a BSc (Electrical Engineering) and an MBA from the University of Alberta. He also holds the Chartered Financial Analyst designation. Jim is a current member of the CFA Institute, a former director of the Canadian Council of Financial Analysts, and a past President of CFA Society Saskatchewan. Jim is a former director of a large venture capital fund and several publicly listed companies. He is also a past President of the Rotary Club of Calgary North.

Rick M. RiffelRick M. Riffel, CFA


Rick has thirty years of investment management and financial analysis experience. He is a former portfolio manager and regional director with TD Private Investment Counsel. Rick was also formerly an investment manager and secretary/treasurer with Crown Life Investment Management Inc. Rick earned a BBA (Accounting & Finance) from the University of Regina. He also holds the Chartered Financial Analyst designation. He is a founding board member of the Frontier Centre for Public Policy, a Winnipeg based public policy think-tank. Rick is also a board member of Direct-MS, a non-profit organization that promotes non-drug therapies for those affected by Multiple Sclerosis. Furthermore, he is a past executive member of CFA Society Saskatchewan and a current member of the CFA Institute.

SkyelarSkyelar Siwak, CIM

Associate Portfolio Manager

Skyelar joined Hemisphere Capital Management in 2015. She previously spent several years in management and project consultancy.  She holds a BA (Commerce, Organizations and Entrepreneurship) from Brown University where she played on the NCAA Division I women’s ice hockey team. She also holds the Chartered Investment Manager designation. Skyelar plays an integral role in the performance analysis and reporting procedures at Hemisphere. She led the firm’s GIPS verification process in which historical composite returns were verified for the past 25 years. She has also taken on an active role in portfolio management, trading  and compliance. Skyelar is a member of the Calgary chapter of Women in Capital Markets. This organization empowers women in finance through networking, mentoring, and education.

Sean A. TokachSean A. Tokach, BA, FMA, FCSI, CIM

Associate Portfolio Manager

Sean has worked within the financial services sector for the past 20 years. He has spent the majority of his career working with clients in an advisory role concentrating on wealth management, retirement planning, and investment management. Sean joined Hemisphere Capital Management Inc. in 2017 taking on the role as an Associate Portfolio Manager while directing Hemisphere’s Business Development efforts. Prior to relocating to Calgary he was an Investment Advisor and Sr. Associate in Vancouver, BC. Sean holds a BA from Saint Mary’s University, as well as the CIM® (Chartered Investment Manager) designation along with other certifications from the Canadian Securities Institute. He is a member of the Estate Planning Council of Calgary, and a Fellow of the Canadian Securities Institute. When family time permits, he volunteers with Habitat for Humanity and the United Way.