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

Key Concepts

• Interest rates are likely to remain higher for longer than market expectations due to persistent inflation and stimulus.
• AI is poised for significant disruption, particularly in autonomous vehicles and B2B applications, but current LLM hype resembles the dot-com bubble.
• Market concentration in a few large-cap tech companies (“Magnificent 7”) presents risks and creates opportunities in quality small-cap stocks.
• Private credit markets pose systemic risks due to opacity, concentration in ‘B’ rated debt, and a lack of market signals.
• A focused, concentrated stock-picking strategy, potentially with leverage, can outperform the market, but requires skill and risk tolerance.
• Biotech investing benefits from specialized hedge fund expertise due to the sector’s complexity.

Interest Rates & Market Outlook (2026)

Near Kesar began by challenging the consensus view of falling interest rates, arguing that significant cuts require substantial declines in both actual inflation and inflation expectations, which he doesn’t anticipate given current economic stimulus. He believes the 2-year Treasury yield around 3.5% accurately reflects the “neutral rate” given inflation around 2.5-3% and similar break-even inflation rates. He cautioned against expecting continued S&P 500 returns of 13-14%, attributing recent gains (since 2015) to “insane” earnings growth (over 40% annualized) from a handful of dominant tech companies – a rate he deems unsustainable. A lack of widening credit spreads in private markets is a concerning signal, historically preceding increased default rates. High current profitability supports premium valuations, creating a “floor” but not guaranteeing continued high returns.

The Rise of AI & Autonomous Vehicles

Kesar highlighted the rapid advancement of AI, citing his children’s experience with Waymo robo-taxis in San Francisco as evidence of its readiness for mass adoption. He predicts serious debates about outlawing human drivers within a few years, driven by the superior safety of autonomous vehicles, framing this as “enhancement” rather than “replacement” – freeing humans for “higher order jobs.” He views the current AI boom as analogous to the late 1990s internet bubble, believing the truly dominant AI companies are yet to be founded, and that LLMs (Large Language Models) like ChatGPT are currently the weakest application of AI, primarily serving as a marketing tool. He advocates for a lighter regulatory touch to encourage innovation and public listings.

Market Concentration & Small-Cap Opportunities

Kesar expressed concern about the increasing concentration of the S&P 500 in the “Magnificent 7,” deviating from the index’s diversification benefits. He believes this concentration, coupled with potential earnings stagnation, could lead to lower returns. He identified a “junk problem” in the Russell 2000, but sees opportunities in quality small-cap companies with strong fundamentals (high ROE, ROIC, and cash flow profitability). He recommends screening for these metrics to identify undervalued opportunities, noting that current large-cap enthusiasm has created a valuation disparity.

Small-Cap Screening & Biotech Investing

The discussion detailed a methodology for building a small-cap quality screen, favoring ROE and ROIC as robust metrics, while expressing reservations about ROA due to accounting complexities. Cash flow profitability is also recommended, but data limitations in the small-cap space were acknowledged. A recent paper on biotech investing revealed a strong signal: biotech companies held by dedicated biotech-focused hedge funds demonstrated superior performance, attributed to their specialized expertise and the difficulty of applying quantitative strategies to the sector. This effect may be due to a “clustering effect” of funds collectively investing.

Credit Markets: Treasuries vs. Private Credit

Despite acknowledging debt sustainability concerns, Kesar defended Treasuries as the “cleanest shirt in the laundry” for safety in a crisis. He then focused on private credit, noting that its volume of new issuance is now comparable to public market credit. His research indicates both public and private credit markets are heavily concentrated in ‘B’ rated debt, which historically exhibits default rates around 8% during crises. The key concern is the lack of transparency in private credit – no publicly available data on issuers, creditworthiness, or default rates, and no market signals (like widening spreads) to indicate impending trouble, creating systemic risk.

Evolved Investment Philosophy & Stock Picking

After 20 years of managing strategies, Kesar described his approach as “one strategy with three volatility targets” (7%, 10%, 13%) driven by investor preference. He emphasizes constructing portfolios based on expected returns, focusing on medium-term averages, and controversially asserted that skilled stock picking with concentrated portfolios (5-10 names) has a higher probability of outperforming the market than commonly acknowledged, particularly when combined with leverage, crediting Kathy Wood with opening the door to this approach.

Conclusion

The discussion presented a nuanced outlook on the market, emphasizing the potential for higher-for-longer interest rates, the transformative power of AI (particularly in autonomous vehicles), and the risks associated with market concentration and opaque private credit markets. Kesar advocated for a focus on quality small-cap stocks, a cautious approach to AI hype, and a critical assessment of credit market vulnerabilities. His evolved investment philosophy highlights the potential for outperformance through skilled, concentrated stock picking, albeit with significant risk. The overall takeaway is a call for a more discerning and fundamentally-driven investment approach in a rapidly changing economic landscape.