
The S&P 500 Is Only 50 Stocks. 70% of the Index Is in a Correction. Did the Sell-Off Already Happen?
Paisley Nardini of Tema ETFs explores AI investing, S&P 500 concentration, and how to build a portfolio around changing market risks. How can investors participate in powerful growth trends without making every holding a bet on the same outcome? In this episode of Excess Returns, Paisley joins Jack Forehand and Justin Carbonneau to discuss the risks beneath a resilient stock market, why tomorrow’s AI winners may differ from today’s leaders, and where she sees opportunities in power and infrastructure. They also explore private-company exposure inside ETFs, the role of thematic funds alongside a passive core, and why knowing what you own matters more than the number of holdings in your portfolio. Topics covered: What weak market breadth reveals beneath the headline indexes Interest rates, midterm elections, and the limits of historical market patterns Prediction markets as a source of information for investors AI earnings expectations, debt financing, and the risk of slowing growth Why bonds can provide income without reliably offsetting equity risk Small-cap profitability and the importance of quality screens AI bottlenecks, photonics, power demand, and infrastructure investment Private-company exposure in ETFs: liquidity, fees, and investment rationale Using thematic strategies as satellite positions around a passive core Portfolio concentration, investment humility, and staying flexible Learn more about Tema ETFs. Follow Paisley Nardini on X. Timestamps: 00:00 Introduction and the risks beneath the market 04:37 Higher rates and the midterm election outlook 09:17 What investors can learn from prediction markets 13:36 AI growth expectations and changing market leadership 19:50 Portfolio risk, bonds, and faster market drawdowns 26:09 The AI bubble debate and small-cap quality 33:45 Who benefits from AI beyond the hyperscalers? 39:29 Energy infrastructure and putting AI to work 45:54 Private-company exposure inside ETFs 52:01 Where thematic investing fits in a portfolio 58:32 Commodities, S&P 500 concentration, and humility Learn more about the Excess Returns podcast network: excessreturns.co No information discussed in this podcast should be construed as investment advice. Securities discussed may be held by the hosts and guests, their firms or their clients.