In Conversation with Justin Hughes – A Market Structure Enthusiast Doubling as a Portfolio Manager

Jun. 01, 2026

In Episode 81, we look at market structure evolution through the lens of a career financial services portfolio manager Justin Hughes from Karl Kapital. In this episode, Justin reflects on market structure evolution and the tradeoffs between competition and fragmentation that resulted from Regulation National Market System (Regulation NMS). He explains why zero commissions was a much bigger catalyst to marketplace volume growth than most market structure experts believe and admits that some marketplace innovations in new product offerings are moving away from core investing principles. Justin does not believe 24-hour trading will have much of an impact on overall volumes and questions whether investors trading overnight understand the cost of convenience. He finishes up in a debate with the host over the move to semiannual reporting by issuers, a practice he is opposed to and concludes with some tips for investors looking at the private credit space.

Chapters:
1:47 A Look Back on Demutualization of Exchanges
10:48 The Importance of Zero Commissions on Volume Growth
15:18 The Need for Guardrails on New Product Innovation
19:25 The Pros and Cons of 24-Hour Trading
26:10 Why is Justin Opposed to Semi Annual Reporting Cadence?
32:23 What Investors in Private Credit Need to Know?

This podcast was recorded on June 2, 2026.


Photo of Peter Haynes

Managing Director and Head of Index and Market Structure Research, TD Securities

Photo of Peter Haynes


Managing Director and Head of Index and Market Structure Research, TD Securities

Photo of Peter Haynes


Managing Director and Head of Index and Market Structure Research, TD Securities