Masters in Business
Masters in Business

Sébastien Page on Smart Asset Allocation

Bloomberg Opinion columnist Barry Ritholtz speaks with Sébastien Page, author of 2020's "Beyond Diversification: What Every Investor Needs to Know About Asset Allocation" and head of T. Rowe Price's multi-asset division, which manages $363.5 billion. Page is also a member of T. R

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Bloomberg HostSebastian Page Guest

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Episode Summary

Executive Summary: Sebastian Page, head of global multi-assets at T. Rowe Price, provides a masterclass on asset allocation, diversification, and risk management. He argues the traditional 60/40 portfolio is 'not bad but needs improvement' due to lower returns and reduced bond diversification. He advocates for dynamic risk management, incorporating low-volatility alternatives, and remaining invested for the long term. Page also discusses value vs. growth, the role of private assets, and combining quantitative and fundamental approaches to investing.

Main Topics: Asset Allocation: Strategic vs. Tactical (Priority: 5/5): Differentiation between long-term strategic allocation (e.g., stocks vs. bonds for a retirement timeline) and medium-term tactical allocation (6–18 months based on relative valuation opportunities). Page emphasizes that strategic allocation should be customized to individual risk tolerance and time horizon, not generic 60/40 advice. Revisiting the 60/40 Portfolio (Priority: 5/5): Page discusses why the classic 60/40 stock/bond mix is 'not dead but needs re-optimization'. Key issues include lower expected bond returns (yields near zero after inflation), reduced diversification benefits from treasuries, and the need to incorporate alternatives, dynamic risk management, and factors like low-volatility equities. Risk Forecasting and Fat Tails (Priority: 4/5): The industry underestimates tail risk and fat-tailed distributions. Page uses the example of selling out-of-the-money put options (the 'picking up pennies in front of a steamroller' strategy) to illustrate how backtests can hide exposure to extreme losses. He advocates for better modeling of tail risk beyond simple volatility. Value vs. Growth Investing (Priority: 4/5): Value investing is not dead. Page sees a tactical opportunity for value/small caps as the economy recovers from COVID, supported by attractive relative valuations and positive momentum. He notes secular advantages for growth in low-rate environments but believes value can regain favor during a cyclical recovery. Active vs. Passive and Quantitative Investing (Priority: 3/5): Both active and passive have roles. Passive can create opportunities for active managers (e.g., when ETF-driven selling drags down unrelated stocks). Page advocates combining quantitative models with fundamental judgment, as 'investing is about forecasting' — you cannot avoid making a judgment about the future. Private Assets: Not a Free Lunch (Priority: 3/5): Private equity returns are often overstated in industry data due to survivorship bias, valuation smoothing, and cash-flow timing. Academic research (Ludovic Phalippou) suggests long-term PE can underperform public equities. Investors should be cautious and recognize the liquidity premium is not risk-free. The Importance of Human Capital and Career Advice (Priority: 2/5): Page shares personal career lessons: build human capital (network, credentials, reputation), stay close to revenue, emphasize communication, manage expectations, and maintain health (diet, exercise, sleep) as a virtuous circle.

Key Arguments: The 60/40 portfolio is too generic; risk tolerance varies by age and goals. Target-date funds suggest 80% stocks at age 50 and 55% at retirement. Bonds (Treasuries) have lost most of their diversification benefit because yields near zero limit their ability to rally during equity selloffs. Long-duration bonds may have only 'one more good crisis' left as hedges. Risk is easier to forecast than returns; volatility is mean-reverting, while returns are not. This implies staying invested is critical. Value investing can work when combined with strong positive momentum and supportive macro conditions (recovery, cheap valuations). Quantitative methods work best with qualitative judgment; data alone is insufficient — you must understand market context and regime changes. Historical data full length does not always improve risk forecasting because asset class composition (sector weights, bond duration) changes over time. Factor models and regime-based analysis can be more effective.

Data Points: Assets under management (AUM) managed by Page's group: $363 billion - Part of T. Rowe Price's total $1.3 trillion under management. Number of portfolios overseen: Over 200 - Page is head of global multi-asset investing, overseeing 200+ different portfolios. Change in 10-year Treasury yield post-COVID: 100 basis points lower (approx. 50% drop) - Lower yields reduce expected returns for bonds; impact on 60/40 portfolio expected return. Equity weight needed for 6% expected return in low-rate environment: ~80% - Based on T. Rowe Price study; shows current low yields force higher equity allocation to achieve historical returns. Money market AUM increase vs. pre-COVID: $700 billion - Suggests 'cash on the sidelines' still high; represents potential risk appetite. Maximum volatility of a 60/40 portfolio (rolling one-year): 20% - Illustrates that 60/40 risk varies dramatically over time depending on market environment.

Pivotal Quotes: "The 60/40 is not dead, but it needs to be improved." — Sebastian Page: Summarizing his central thesis on the classic stock/bond portfolio in a low-yield world. "If you don't think you can forecast expected returns, you shouldn't be in the investment business." — Sebastian Page (quoting a conference presenter): Defending the necessity of making forecasts (using both quantitative and judgmental methods) despite inherent uncertainty. "Diversification works very well when you don't need it and not so well when you actually need it during crashes." — Sebastian Page: Explaining the well-known limitation of diversification during extreme market downturns.

Implications: Investors must rethink the 60/40 portfolio: lower bond yields demand higher equity allocation and/or alternative diversifiers. Dynamic risk management and tail-risk awareness become essential. A blend of quantitative/factor-based and qualitative judgment can improve outcomes. Private assets require careful due diligence, not a presumption of free lunch.

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Barry Ritholtz speaks with the people that shape markets, investing and business.

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