Exchange-traded fund

Open-end Funds vs. ETFs: Lessons from the COVID Stress Test

COVID-19 posed the most severe stress test for financial markets and institutions since the Great Financial Crisis (GFC) of 2007-09. By some measures, the COVID shock’s peak impact was larger than that of the GFC—both the VIX rose higher and intermediaries’ estimated capital shortfalls were bigger. As a result, the COVID experience provides a natural laboratory for testing the resilience of many parts of the post-GFC financial system.

For example, the March 2020 dysfunction in the corporate bond market highlights the extraordinary fragility of a market that accounts for nearly 60% of the debt and borrowings of the nonfinancial corporate sector. Yield spreads over equivalent Treasuries widened further than at any time since the GFC, with bond prices plunging even for instruments that have little risk of default. (See Liang for an excellent overview.)

In this post, we focus on how, because of the contractual agreement with their shareholders, an extraordinary wave of redemptions created selling pressure on corporate bond mutual funds that almost surely exacerbated the liquidity crisis in the corporate bond market. To foreshadow our conclusions, we urge policymakers to find ways to reduce the gap between the illiquidity of the assets held by corporate bond (and some other) mutual funds and the redemption-on-demand that these funds provide. To reduce systemic fragility, we also urge them—as we did several years ago—to consider encouraging conversion of mutual funds holding illiquid assets into ETFs, which suffered relatively less in the COVID crisis….

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Liquidity Transformation and Open-end Funds

In the aftermath of Britain’s July 2016 vote to exit the European Union, six U.K. open-end property funds with nearly £15 billion in assets suspended redemptions. These funds had routinely engaged in an extreme version of liquidity transformation: offering investors the ability to convert their shares into cash daily on demand, while holding highly illiquid commercial properties. Fortunately, the overall sector was small, and its post-referendum disruption neither spilled over broadly to funds holding other assets, nor prompted a wave of fire sales that might have undermined the balance sheets of leveraged intermediaries. Nevertheless, the episode was of sufficient concern that the U.K. Financial Conduct Authority (FCA) is now reviewing its “regulatory approach to open-ended funds that invest in illiquid assets” (see here).

The FCA is not alone in its concerns. Other regulators have been looking closely at risks associated with the liquidity transformation performed by open-end funds. And, interest in the official sector has been accompanied by a wave of academic research on liquidity management in open-end funds that generally buttresses the regulators’ concerns. In this piece, we briefly highlight the work of the regulators, summarize the research, and finally reprise our proposal to convert open-end funds into exchange-traded funds (ETFs).

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Opportunities in Finance

“We’re really only at 1% of what is possible, and probably even less than that. […] We should be building great things that don’t exist.”     Larry Page, Google I/O 2013 Keynote

With the summer coming to an end, professors everywhere are greeting a new group of students. So, our thoughts turn to the opportunities and challenges that those interested in finance will face over the course of their careers.

Like many important activities, finance is constantly evolving, so the “facts” that students learn in classes today will almost certainly change rapidly. With that in mind, we always strive to find a set of core principles that will endure, so that students can build a career based both on a set of specialized skills and on a broad capacity to imagine where finance and the financial system are heading...

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The World of ETFs

The first U.S. exchange-traded fund (ETF)—the SPY based on the S&P500—began trading in 1993. Since then, the number of such funds has grown dramatically, so that by mid-2016 there were more than 1,600 ETFs on U.S. exchanges valued at roughly $2.2 trillion. This means that ETFs are now roughly one-sixth the size of open-end mutual funds. And, with this ETF growth has come a broadening in their scope and character. Today, there are ETFs that include less liquid assets such as corporate bonds and emerging market equities, and there are funds that provide inverse or leveraged exposure to the underlying assets.

Given these trends, it is no surprise that ETFs have attracted regulators’ attention (see, for example, here and here). Should they be concerned? Is this a consumer protection issue? Do ETFs contribute to systemic risk? Or, is their design stabilizing? Might financial stability even be served by the conversion of all open-end mutual funds into ETFs? ...

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