The $5 Trillion Question | Kai Wu on the Risks of the Mag Seven's Big AI CapEx Bet
Kai Wu of Sparkline Capital joins Excess Returns to discuss his paper Surviving the AI CapEx Boom. In this episode, Kai breaks down the unprecedented level of investment in AI infrastructure, why today’s AI buildout mirrors past technology booms, and what it all means for investors. He explores the parallels between AI and historic bubbles, the implications of massive corporate CapEx spending, and where value might ultimately be captured as the cycle plays out.Topics covered:Why big tech’s CapEx spending has exploded and how much they’re investingThe trillions in revenue needed to justify AI infrastructure spendingHistorical parallels with the railroad and dot-com buildoutsWhy companies that invest heavily often underperformHow the Mag 7 are shifting from asset-light to asset-heavy businessesThe risks of “circular deals” and financial entanglement in AIWhy the AI race resembles a prisoner’s dilemmaWhich layers of the AI stack may capture long-term valueHow early adopters and infrastructure players differ in capital intensity and returnsWhere investors might find opportunity beyond the obvious AI namesTimestamps:00:00 Introduction and overview of AI CapEx boom03:00 Why Kai researched AI investment cycles05:00 Scale of big tech’s CapEx spending07:00 Revenue needed to justify AI infrastructure08:30 Market concentration and valuation risks11:30 Historical parallels: railroads, internet, and AI14:30 The capital cycle and overinvestment dynamics17:30 “This time is different?” and lessons from bubbles18:00 Factor investing and high-asset-growth underperformance21:00 Sector and firm-level CapEx trends22:30 Winner-take-all dynamics and competitive pressure26:00 How the Mag 7’s business model is changing30:00 Comparing tech CapEx to utilities34:00 The circular deal problem and financial risk37:30 The AI arms race as a prisoner’s dilemma40:30 Will AI be winner-take-all?43:30 Lessons from the railroad and dot-com eras47:00 Where the value is captured in infrastructure vs adoption48:00 Identifying early AI adopters and hidden beneficiaries50:30 Sector and geographic AI exposure54:00 Capital intensity and valuation differences between infrastructure and adopters
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The Inflation Risk Investors Miss | Nancy Davis
In this episode of Excess Returns, we speak with Nancy Davis, founder and CIO of Quadratic Capital Management and the mind behind the innovative fixed income ETFs IVOL and BNDD. Nancy shares her insights on how investors are unknowingly short volatility in their portfolios, the role of options and convexity in fixed income, and how her ETFs seek to hedge against inflation, interest rate shifts, and volatility in a unique way. We also discuss the bond market, inflation dynamics, and how investors can better understand and manage risks that are often hidden inside traditional portfolios.Main topics covered• How Nancy’s experience trading volatility at Goldman Sachs shaped her investment philosophy• Why most investors are short volatility without realizing it• Understanding convexity and prepayment risk in bond portfolios• The rise of passive investing and its impact on interest rate volatility• How IVOL provides exposure to interest rate volatility and inflation protection• The problem with relying on CPI as a measure of inflation• Why gold is an inconsistent inflation hedge• The yield curve as an alternative indicator of inflation expectations• Why interest rate volatility is historically cheap today• The relationship between bond volatility and stock volatility• How to think about IVOL and BNDD in a diversified portfolio• The long-term risks of shorting volatility and selling options for “income”Timestamps00:00 Introduction and overview of option selling in markets02:15 Nancy’s background at Goldman Sachs and lessons on volatility05:00 Understanding convexity and its importance in fixed income06:30 Why investors are short interest rate volatility without knowing it10:25 The hidden risks inside the bond market and the role of mortgages11:00 Why most investors are short inflation in real life13:00 Conventional vs. alternative inflation hedges17:00 Why CPI is an imperfect inflation measure18:00 How the yield curve reflects inflation expectations21:00 Historical yield curve data and current inversion25:00 Interest rate volatility after Silicon Valley Bank26:30 Relationship between bond and stock volatility28:00 Using IVOL in a portfolio31:00 Discussion on the national debt and interest rate risk32:00 BNDD ETF and how it complements IVOL33:30 Why inflation-protected bonds are underused in the US36:00 Closing questions – what Nancy believes most peers disagree with37:00 Why selling options is not income and the risks investors overlook
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The 40 CAPE Conundrum | Meb Faber on What High Valuations Mean for Markets
In this episode of Excess Returns, Meb Faber joins the show to discuss valuations, diversification, trend following, value investing, and the evolution of markets and investor behavior over the past two decades. Meb shares insights from his upcoming book, lessons from 400 years of market history, and how investors can position themselves for the next decade. The conversation covers everything from international investing and concentration risk to ETFs, managed futures, AI, and long-term discipline.Topics covered:The four historical periods of 15%+ annualized stock market returns and what followedWhy current U.S. valuations don’t necessarily mean an immediate crashHow global value stocks are now outperforming the S&P 500The role of international diversification and real assets in portfoliosTrend following and managed futures as the “premier diversifiers”The benefits of blending trend and valuation-based strategiesThe permanent portfolio and how managed futures enhance itConcentration risk in U.S. equities and what history teaches about market leadershipThe parallels (and limits) between today’s market and the dot-com bubbleAI’s potential role in investing and portfolio managementThe behavioral traps around performance chasing and when to sellLessons from launching and running ETFs and the 351 exchange structure for tax efficiencyThe future of markets, retail investors, and Meb’s upcoming book “Time Billionaires”Timestamps:00:00 Intro and market performance context04:00 Are U.S. valuations permanently higher?09:00 The spectrum of future returns and investor playbook12:00 International and value investing opportunities15:00 Trend following and managed futures19:00 The permanent portfolio and diversification25:00 Concentration risk and market structure28:00 AI’s impact on investing32:00 Comparing today’s market to the dot-com bubble37:00 The long-term case for value investing41:00 When to sell and investor behavior45:00 Lessons from running ETFs and industry evolution51:00 Understanding 351 exchanges and tax-efficient investing57:00 What’s changed most for investors over 20 years59:00 Meb’s new book “Time Billionaires” and closing thoughts
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Everyone Feared Recession. His Data Said Otherwise | US Bank CIO Eric Freedman on What It Says Now
Eric Freedman, Chief Investment Officer at US Bank Wealth, joins Excess Returns to discuss markets, the economy and his investment process. Freedman shares his “control the controllables” investment framework, why he’s maintained a glass-half-full view on the U.S. economy, and how data—not emotion—drives portfolio decisions. The conversation covers macro trends, inflation, the Fed, AI, valuation, and how to stay disciplined as an investor.Topics covered:Data-driven investing and the “control the controllables” frameworkWhy the U.S. consumer remains resilientInflation outlook and how sticky prices impact portfoliosThe Fed’s next moves and what investors should watchGlobal diversification and the case for international stocksHow to think about inflation protection and real assetsThe diffusion of AI and separating winners from pretendersMarket concentration, valuations, and managing riskLife lessons from a CIO: discipline, process, and informed decision-makingTimestamps:00:00 Introduction03:00 Controlling the controllables06:00 Why Eric remains optimistic on the economy10:00 How portfolio decisions flow through US Bank15:00 Data-driven insights vs. gut feel18:00 Consumer strength and scorecard22:40 Inflation outlook and Fed challenges30:00 Bond market risk and the “Brazilian steakhouse” analogy34:00 Global competition and diversification38:00 Inflation protection and real assets41:30 The reality of AI and productivity47:00 Market concentration and the Mag 752:00 Valuations and long-term returns55:45 Lessons for investors
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Most Never Escape Stage 3 | Rick Ferri on the Education of an Index Investor
In this episode of Excess Returns, we welcome back Rick Ferri, founder of Ferri Investment Solutions and host of the Bogleheads on Investing podcast. Rick shares timeless insights on the evolution of an investor’s education, the pitfalls of complexity, and how to build portfolios that are simple, low-cost, and behaviorally sustainable. The discussion covers how investors can think about macro forecasts, indexing, factors, international diversification, and the right withdrawal rates in retirement.Topics covered:Why macro forecasting rarely works as a long-term investment strategyThe four stages of the index investor’s education: darkness, enlightenment, complexity, and simplicityHow financial advisors and Wall Street profit from unnecessary complexityThe case for international diversification and how to size it correctlyThe pros and cons of factor investing and why behavioral discipline matters more than factors themselvesWhy passive investing isn’t “too big” and why indexing works over timeHow to think about valuations and investor psychologyTips, gold, and how to think about inflation protectionRethinking the 4% withdrawal rule and why goals for heirs matter more than formulasThe one piece of advice Rick would give to young investors todayTimestamps:00:00 Introduction and the four stages of an index investor03:00 Why macro forecasting fails as an investment tool07:00 The evolution from complexity to simplicity13:00 Complexity as job security for advisors18:00 Should investors own international stocks?23:00 The behavioral challenge of factor investing32:00 Is passive investing too big?34:00 What to do (and not do) with market valuations37:00 Managing investor behavior through small adjustments39:00 Inflation, TIPS, and the role of gold46:00 Why indexing works and what makes it unbeatable49:00 The 4% rule and smarter withdrawal strategies57:00 Advice for young investors and what Rick wants his legacy to be
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