Ep. 335: Marc Rubinstein on AI Bubble, Private Credit, Jane Street Rise

Nov 20, 2025
42 mins

Episode Description

Marc Rubinstein is author of Net Interest – a leading weekly newsletter on the world of finance. Before this, Marc spent ten years at leading hedge fund Lansdowne Partners, where he was a partner and portfolio manager. This was after he spent time on the sell-side working for Barclays Investment Bank (BZW), Schroders and then Credit Suisse, where he was head of the European banks research team. In this podcast we discuss:.  

  • AI bubble historical analogies 
  • 1907 crisis and non-bank growth 
  • Private credit risks 
  • Fraud cycles and market corrections 
  • Jane Street's technological edge 
  • Exchanges commoditise trading 
  • Banks adopt blockchain technology 
  • Fintech challenges incumbents 
  • AI disrupts entry-level finance jobs 
  • Books mentioned: 1929 (Andrew Ross Sorkin), Land Trap (Mike Bird) 
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