It’s Only a Question of When | Nir Kaissar on AI, Private Credit and the Regime Shift Investors Miss

In this episode of Excess Returns, we sit down with Bloomberg Opinion columnist Nir Kaissar for a wide-ranging conversation on markets, AI, interest rates, private credit, small caps, and the risks investors may be underestimating. Nir shares his unexpected predictions for 2026, challenges the consensus on Fed rate cuts, explains why high profitability may be putting a floor under valuations, and offers a thoughtful framework for thinking about AI, concentration risk, and the future of public versus private markets. This is a deep dive into today’s most important investing debates, grounded in history and focused on what may come next.Topics CoveredNir’s unexpected predictions for 2026 and why mass adoption of autonomous vehicles may arrive faster than investors expectWhy the consensus on lower interest rates in 2026 may be wrong and what the two year Treasury yield is signalingThe impact of tariffs, affordability pressures, and corporate margins on inflationWhy high corporate profitability may support elevated stock market valuations even if returns slowThe role of earnings growth in driving S&P 500 returns and why 2015 to 2024 may not repeatIs AI more like 1995 or 1999 in the internet cycle and what that means for long term investorsThe convergence of big tech companies around AI and the risks of a more zero sum competitive landscapeWhy companies staying private longer could hurt retail investors and distort public market indicesConcentration risk in the S&P 500 and what it means for long term portfolio constructionOpportunities and risks in small cap stocks, including the importance of quality screensThe growth of private credit markets and the hidden risks investors may not seeWhy Treasuries may still be the cleanest shirt in the laundry during a crisisLessons from 20 years of running strategies and what Nir has changed his mind aboutTimestamps00:00 Nir’s 2026 predictions and the rise of Waymo05:00 Interest rates, Trump, and the outlook for Fed policy08:40 Tariffs, inflation, and corporate margins12:00 Valuations, profitability, and future S&P 500 returns16:00 AI compared to the internet era and long term investing lessons19:00 Public versus private markets and regulatory concerns32:00 Concentration risk and the Magnificent Seven39:00 Small caps, quality screens, and value opportunities47:00 Private credit risks and default cycles54:30 Nir’s investment philosophy and 20 year lessons