Episode Summary
Executive Summary: Stephen Cohen, BlackRock’s chief product officer, explains how ETF innovation evolved from plain-vanilla index access into a broader product platform spanning active ETFs, fixed income, crypto, and eventually private markets. He emphasizes that product development is driven by portfolio outcomes, client demand, and market structure shifts rather than novelty for its own sake.
Main Topics: Career path into markets and Japan expertise (Priority: 4/5): Cohen describes his accidental entry into finance, early work in fixed income and convertible bonds, and how time in Japanese markets shaped his understanding of different financial systems and economic cycles. BlackRock and the rise of iShares ETFs (Priority: 5/5): He recounts joining BlackRock in 2011 when European ETFs were still nascent and explains how iShares helped mainstream ETFs, portfolio education, and blending active and index strategies. ETF product evolution and active vs. passive (Priority: 5/5): The discussion covers how ETFs expanded from broad index exposure into sector, country, fixed-income, digital-asset, and active products, and how the industry moved beyond a simplistic active-versus-passive divide. Private markets and portfolio access (Priority: 5/5): Cohen argues the key issue is not forcing illiquid assets into an ETF wrapper, but finding better ways to incorporate private equity, credit, and infrastructure into portfolios with improved access, transparency, and risk management. Technology, Aladdin, and data infrastructure (Priority: 4/5): He highlights BlackRock’s acquisitions of Preqin and eFront and says Aladdin will be critical in integrating public and private markets through better data, risk analytics, and portfolio construction. AI, systematic investing, and product development (Priority: 4/5): Cohen says AI is affecting investing in three ways: as a theme, as a tool for systematic alpha generation, and as a method for identifying client needs and testing new strategies. Macro undercurrents and overlooked risks (Priority: 3/5): He points to demographics, immigration, post-COVID distortions, and lingering effects from prior crises as underappreciated factors that may shape inflation, income needs, and asset allocation.
Key Arguments: ETFs succeeded because they gave low-cost, transparent access to exposures that were previously hard to own, and that mission expanded from indexing into active, fixed income, and digital assets. The industry has moved from debating active versus passive to combining both in portfolios based on client goals and outcome-driven construction. Private markets should be viewed as a portfolio solution problem, not merely a product-format problem; the real challenge is access, risk management, liquidity, and operational simplicity. BlackRock sees Aladdin and its data platforms as essential for blending public and private assets and making private-market investing more manageable for wealth managers and institutions. Fixed-income ETFs are still early in adoption relative to the size of the bond market, suggesting major room for growth and active innovation. AI is increasingly useful both for generating investment insights and for systematically scanning client, market, and news data to guide product creation. Many rejected product ideas are not bad ideas but simply premature because the market, liquidity, or regulation was not ready yet.
Data Points: BlackRock assets under management: $3.5 trillion - Barry Ritholtz introduces BlackRock and Cohen’s role iShares ETF division assets: over $5 trillion - BlackRock’s iShares business scale European iShares assets: over $1 trillion - Growth since Cohen joined in 2011 European ETF market size: about $2.5 trillion - Cohen describes the current European ETF industry Japan Nikkei level in the late 1990s/early 2000s: around 9,000 to 10,000 - Cohen contrasts Japan then versus now Japan Nikkei current level: around 46,000 - Cohen notes the long recovery in Japanese equities Bitcoin market size at IBIT launch: a little over $1 trillion - Cohen describes why an ETF wrapper helped adoption IBIT growth milestone: fastest ETF to $20B, $30B, $40B, and $50B - Cohen highlights the speed of Bitcoin ETF asset gathering Number of ETFs launched this year: over 1,000 - Barry notes the pace of ETF product proliferation Fixed-income ETF industry size: about $2.5 trillion - Cohen describes current fixed-income ETF assets Projected fixed-income ETF industry size by 2030: $6 trillion - Cohen’s growth outlook Share of global bonds in ETFs: less than 2% - Cohen underscores how early fixed-income ETF adoption still is Size of fixed income market: $140 trillion - Cohen compares ETF penetration to the total bond market Traditional portfolio mix: 60/40 - Cohen uses it as the legacy portfolio framework Alternative portfolio mix discussed: 50/30/20 - Cohen suggests a future model with 20% private markets Lost Bitcoin estimate: 25% to 30% of all coins mined - Barry raises custody and key-management issues for direct Bitcoin ownership Career timeframe at Nomura: until 2011 - Cohen explains his move to BlackRock after Nomura
Pivotal Quotes: "We were very allergic to the word passive." — Stephen Cohen: Describing how BlackRock framed ETFs as an active portfolio choice rather than a simplistic passive label "The real story is: how do you open up access appropriately for more people to access private markets as part of the portfolio." — Stephen Cohen: Explaining why the private-markets discussion is broader than putting illiquid assets into an ETF "We started with indexing on one side of the floor and active on the other side. And we gradually brought those together." — Stephen Cohen: Summarizing the industry’s shift toward blending active and indexed investing
Implications: ETF growth is broadening into a full portfolio-construction platform, while private assets and AI become more accessible through better data, structure, and risk tools. Investors should expect more hybrid products and more emphasis on outcomes than labels.
About Masters in Business
Barry Ritholtz speaks with the people that shape markets, investing and business.