Financial Thought Exchange Podcast

Rob Arnott joins Lotta Moberg, PhD, CFA, to continue their conversation on indexing, focusing on how index construction decisions shape outcomes for investors. Arnott examines the hidden effects of index membership, including how inclusion can influence valuations and create structural buying pressure, and why traditional market‑cap approaches may embed unintended biases. He introduces alternative approaches such as fundamental indexing, explaining how weighting by economic size rather than price can change portfolio behavior and return profiles. The discussion also explores turnover, momentum, IPO dynamics, and practical ways to think differently about benchmarks and passive investing. Arnott offers a perspective that challenges conventional definitions of "passive," encouraging a more critical view of how indices are built and used.

What is Financial Thought Exchange Podcast?

The Financial Thought Exchange Podcast offers listeners invaluable insights from top financial thought leaders across various sectors. Whether you're a financial analyst, investor, or simply interested in the "inside baseball" of the financial world, this podcast provides access to some of the most influential people shaping the industry.

Brought to you by the CFA Institute Research Foundation, the Financial Thought Exchange is your go-to resource for staying informed and gaining a deeper understanding of the finance industry's most pressing topics. Tune in for interviews with industry pioneers, expert analyses, and actionable insights you can apply in your own financial journey.

Financial Thought Exchange is the official podcast and video channel of the CFA Institute Research Foundation.

Check out our peer-reviewed research here: https://rpc.cfainstitute.org/en/research