Trillions
Trillions

2008: The ETF Retrospective

Ten years ago, the financial crisis changed everything -- and helped create the world we now inhabit. Eric and Joel push rewind to revisit 2008, examine why ETFs managed to take in money that year despite the huge loss in the market, and dissect what's changed in the decade since and what it te

Featured Speakers

Bloomberg HostChristine Harper Guest

Topics Discussed

Episode Summary

Executive Summary: The episode revisits 2008 to test whether ETFs were fragile in crisis or actually a source of liquidity and transparency. Using five stats, the hosts and guest Christine Harper argue ETFs drew flows, traded heavily, and generally held up, while active funds and illiquid assets struggled. The discussion also highlights long-dated Treasuries, gold, and smart beta as crisis winners and warns against complacency about ETF structure.

Main Topics: 2008 as a stress test for ETFs (Priority: 5/5): The hosts frame the financial crisis as a crucial moment to evaluate whether ETFs failed or instead served as liquid, transparent vehicles amid turmoil. ETF flows versus active fund outflows (Priority: 5/5): A major surprise was that ETFs attracted large net inflows in 2008 while active mutual funds lost substantial assets, suggesting investors sought liquidity and clarity. Trading volume as a fear gauge (Priority: 4/5): ETF turnover surged to record levels during volatility, reinforcing the idea that ETFs are primarily trading tools used more aggressively when markets are stressed. Why ETFs worked in 2008 (Priority: 4/5): Christine Harper argues ETFs benefited from transparency, exchange trading, 40-act structure, real-time pricing, and physically backed holdings, making them a refuge from opaque illiquid products. Active management and closet indexing (Priority: 4/5): The crisis exposed the limits of active mutual funds, many of which held similar large-cap names and still underperformed sharply after fees. Crisis winners: Treasuries, gold, VIX, and junk bonds (Priority: 3/5): The episode compares asset-class behavior, noting long Treasuries and VIX-linked strategies excelled, gold acted as a weak diversifier, and high-yield ETFs drew surprising inflows despite severe stress. Complacency and the future of market structure (Priority: 5/5): The speakers warn that ETF resilience depends on underlying market liquidity; if the assets inside ETFs become hard to price or trade, discounts and stress can emerge.

Key Arguments: ETFs were not weak hands in 2008; they took in money when markets collapsed, implying investors used them as liquidity tools rather than fleeing them. The crisis was largely a run on illiquid, opaque assets, so exchange-traded products benefited by contrast from transparency and the ability to trade instantly. ETF trading volume spikes during volatility because investors use ETFs to hedge, short, speculate, or adjust exposure without disturbing underlying holdings. Active mutual funds and hedge funds were often unable to sidestep the crisis because they held the same large financial stocks, a form of closet indexing. The main risk to ETFs is not the wrapper itself but the liquidity and pricing of the underlying assets; when those inputs fail, ETF discounts can widen. Long-duration Treasuries were the clearest hedge in 2008, while gold provided diversification but not perfect protection. Smart beta/ rules-based strategies can outperform dramatically in crises if they force buying when others are forced sellers, but investor patience is required. Vanguard’s 2008 inflows show that disciplined passive investors can be unusually sticky even in severe drawdowns.

Data Points: ETF net flows in 2008: $175 billion - ETFs attracted large net inflows during the financial crisis year. Index mutual fund flows in 2008: $90 billion - Index mutual funds also took in money, though less than ETFs. Active mutual fund flows in 2008: -$259 billion - Active mutual funds lost assets as investors exited. ETF trading volume in 2008: $25 trillion - Total ETF share trading hit a record and exceeded U.S. GDP. SPY monthly trading peak: Over $1 trillion in October 2008 - October was cited as the most volatile and heaviest-trading month. ETFs as share of equity trading: About 28% on normal days; 35%-40% in volatile periods - ETF trading intensity rises with market stress. ETF market size then vs. now: About $600 billion in 2008 vs. $3.6 trillion now - Used to explain how extraordinary 2008 trading volume was on an asset-adjusted basis. Market decline in 2008: S&P 500 down 37% - Active managers had to perform against a severe benchmark loss. Two-thirds of active funds: Underperformed the S&P 500 - Illustrates the difficulty active managers had in the crisis. Fidelity Magellan return in 2008: -49% - Example of a badly hit flagship active fund. Gold return in 2008: +3% - Gold was a weak hedge and did not meaningfully offset equity losses. 20+ year Treasury ETF (TLT) return in 2008: About equal to the market’s decline - Long Treasuries served as a strong offset to equity losses. Extended duration Treasury ETF (EDV) return in 2008: +50% - Best-performing ETF example cited. VIX: +77% - Volatility rose sharply during the crisis. VIX futures index return: +126% - Measured upside from crisis volatility using futures roll mechanics. High-yield ETF inflows: $1.5 billion - HYG attracted inflows despite severe junk-bond stress. HYG drawdown: -30% in 10 weeks - High-yield debt was severely hit late in 2008. Vanguard 2008 inflows: $90 billion - Showed strong investor discipline and passive loyalty during turmoil. HYG market share today: 2% of junk bonds but 13% of high-yield trading - Used to illustrate ETFs’ growing market influence and potential liquidity transfer. Smart beta example PRF: 50% financials in 2009 - Rules-based rebalancing led to aggressive buying of beaten-down financial stocks.

Pivotal Quotes: "ETFs took in $175 billion in flows in 2008." — Eric Balchunas: Introduces the first key statistic showing ETFs attracted money during the crisis. "You can almost think of the run up to the financial crisis as a run up in investment in illiquid products." — Christine Harper: Explains the crisis as a collapse of opaque, hard-to-trade assets. "The takeaway here is that they are vulnerable if, in fact, there's a problem with anything that they hold." — Eric Balchunas: Summarizes the main structural risk to ETFs.

Implications: ETFs generally proved resilient in 2008 because they offered liquidity and transparency, but their reliability depends on the tradability of underlying assets. Investors should respect ETFs as tools, not magic shields, and stay alert to market-structure stress.

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About Trillions

Money goes where it's treated best. That simple truth is a big reason why more and more money—trillions, in fact—flows into a powerful, low-cost tool that's quietly transformed investing in recent years. Exchange-traded funds, or ETFs, let you invest in everything from the stock market to gold like never before. This biweekly podcast will demystify them—and delight you in the process.

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