Odds on Open

159 Billion-Dollar Quant Investor: Stop Only Investing in the S&P500

Nov 4, 2025
Jason Hsu, co-founder of Research Affiliates and CIO of Rayliant, shares insights on smart beta and quantitative investing. He argues that simply investing in the S&P 500 is outdated, highlighting the inefficiencies in Asian markets due to retail speculation and governance risks. Jason discusses the evolution of factor investing, emphasizing its advantages over traditional indexing. He also explains how Rayliant employs machine learning to create robust portfolios and shifts retail investors from short-term trading to long-term value creation.
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ADVICE

Build Multi-Factor Products For Larger Markets

  • Focus product development on larger, more liquid Asian markets like Taiwan, Japan, Korea, Hong Kong, and China.
  • Use multi-factor models and machine learning to build smarter smart-beta 2.0 products for those markets.
INSIGHT

Factors Are The Portfolio's Nutrients

  • Factors act like portfolio 'nutrients' that reveal structural strengths and weaknesses across holdings.
  • They simplify portfolio construction by focusing on macro building blocks rather than complex single-stock stories.
INSIGHT

Two Sources Of Factor Returns

  • Factor returns stem from two sources: risk premia and behavioral biases.
  • In Asia, behavioral biases provide more 'free-lunch' opportunities than in the highly efficient US market.
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