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In This List
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Credit Trends: How ETFs Contributed To Liquidity And Price Discovery In The Recent Market Dislocation

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Credit Trends: How ETFs Contributed To Liquidity And Price Discovery In The Recent Market Dislocation

(Editor's Note: On July 15, 2020, we republished this article to clarify the description of fixed-income ETF volumes in chart 1.)

As the coronavirus pandemic accelerated across the globe in late February and March, liquidity quickly started to recede from both primary and secondary credit markets. Primary market issuance of both investment- and speculative-grade bonds came to a virtual standstill in late February--limiting companies' ability to raise new funding for working capital or to refinance debt.

Secondary market trading increased yet was concentrated in a small share of the most liquid bonds. Bond spreads continued widening for both investment- and speculative-grade companies until the Fed announced on March 23 that it would step in to support liquidity in both the primary and secondary corporate credit markets.

Market conditions for speculative-grade issuance and pricing further rebounded after the Fed expanded its liquidity facilities to include fallen angels (issuers downgraded to speculative grade from investment grade) and high-yield exchange-traded funds (ETFs). However, while bond issuance dried up and spreads widened dramatically, fixed-income ETFs' trading volumes spiked in late February and early March.

ETF trading volume reached a record as soon as primary markets shuttered and before the Fed made its initial announcement regarding corporate bond purchases.

Chart 1

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Chart 2

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The Structure Of Secondary Credit Markets Has Changed Following Periods Of Stress

ETFs were created in the aftermath of the Oct. 19, 1987, market crash, following the SEC's publication of "The October 1987 Market Break," and their role has evolved in response to subsequent market events.

Following the global financial crisis, as broker-dealers stepped back from fixed-income market-making activities, fixed-income ETFs partially filled the void. This provides market participants (including retail investors and institutional investors such as portfolio managers, mutual funds, and insurance companies) with a way to trade credit assets on an exchange throughout the day and hedge credit exposure.

In mid-2007, broker-dealers held $418 billion in corporate and foreign bond assets that could be used for market-making activity, but now these holdings account for less than $60 billion.

In contrast, ETFs' holdings of corporate bonds have increased by more than $500 billion since that time, according to data from the Federal Reserve.

Chart 3

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ETF Price Moves Preceded Index Moves

As the effects of the COVID-19 pandemic spread throughout financial markets, credit markets became dislocated.

The S&P U.S. Investment Grade and High Yield Corporate Bond Indices suffered their worst monthly returns since 2008, falling 6.1% and 12.5%, respectively.

Investment-grade ETF price declines preceded declines in the S&P U.S. Investment Grade Corporate Bond Index (see chart 4). Three of the largest investment-grade corporate bond ETFs each recorded a steeper price decline and rebound than the investment-grade index.

Chart 4

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Speculative-grade credit showed a similar pattern. ETF prices for two of the largest high-yield ETFs led the index of the underlying bonds on the way down, and on the way back up (see chart 5).

Chart 5

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Trade Volume For Bonds Spiked, ETF Volumes Spiked Higher

Volumes spiked in nearly every asset class as the impact of the COVID-19 pandemic spread globally, but fixed-income ETFs saw a dramatic increase relative to the broad credit market. TRACE monthly volume data shows U.S. corporate trading surged 50% in March 2020 (see chart 6). During that same time, volumes of the largest fixed-income ETFs rose nearly 200%.

Chart 6

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Many individual bonds seldom trade in the credit market, and the difference between trade volume and the total size of the bond market illustrates this. Monthly volume of all U.S. corporate bond trading surpassed $1 trillion in par value in 2020. The total size of the U.S. dollar credit market, measured by the S&P U.S. Dollar Global Investment Grade and High Yield Corporate Bond Indices, is close to $10 trillion in par value outstanding.

In March, more than half the bonds (by par value) in iShares iBoxx $ Investment Grade Corp Bond ETF (LQD) saw no trades in a given day, and a further 43% traded just one to five times a day, on average, (according to FINRA TRACE), while millions of LQD shares were traded daily. Even though ETF assets account for just around 5% of the total par value of U.S. corporate bonds, persistent trading of these shares over exchanges offered investors an alternate route to enter and exit the bond market.

With just a fraction of bonds traded in a given month, ETFs offered some market participants a means to trade bonds, without having to match buyers with sellers in a single bond. When the share prices of an ETF diverge from the net asset value (NAV) of the fund, then the authorized participants can use the create/redeem feature of an ETF to arbitrage the difference.

ETFs Played A Role In Price Discovery

During periods of acute stress or panic, both primary and secondary markets typically face sudden illiquidity. ETFs are not immune to this illiquidity, but the ease of trading and low transaction costs attract a high volume of trades from investors.

With ETF price moves preceding those of the underlying bond indices and preceding moves in credit spreads, ETFs appear to have brought more visibility to rapid and potentially sharper price movements. We believe this aided investors' price discovery on the value of their underlying bond assets (both to the upside and the downside).

In March, steep discounts suddenly emerged in the price of some of the largest fixed income ETFs. This divergence between the ETF prices and NAVs led to the most pronounced ETF premiums and discounts since the global financial crisis. However, ETFs now play a larger role in credit markets than they did at that time.

Chart 7

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There are a few structural factors that can help explain the difference between the price of ETFs and their NAVs during the market dislocation.

ETF prices reflect actual trades on an exchange, while prices for the underlying bonds are typically shown as "request for quote."  In the over-the-counter (OTC) market--where the advertised price can be fleeting if the trader showing the bid chooses to remove it.

There's latency in the NAV calculation of the ETF.  Price providers play a big role in NAV calculation and are often referred to as price "evaluators." In addition to trades reported on a delay, the evaluated price may also include information such as dealer quotes, which may not move as fast as the market as dealer quotes may become stale or evaporate altogether.

In a normal functioning market--where underlying bonds can be traded at prices near those estimated by the evaluators--steep discounts, such as those we saw in corporate ETFs, can entice authorized participants (who can directly create or redeem ETF shares with the fund manager) to redeem shares of the ETF by handing shares over to the fund manager in exchange for a representative basket of bond assets that track the underlying index.

In this manner, the authorized participant picks up underlying assets at a discount (which they can then sell), and ETF shares are removed from the market, bringing the price of the ETF back to equilibrium with its underlying assets.

However, amid the market dislocation in March, these authorized participants were either unable, or unwilling, to step in with enough capacity to bring the ETF prices into equilibrium with those of the underlying bonds. We even saw inflows mount in some ETFs during March 17-20, despite the steep discounts, potentially as the ETFs provided investors with a faster and easier way to liquidate a bond position than the secondary market.

Rather than being forced to sell bond positions that had suddenly become illiquid, some participants appear to have used-fixed income ETFs to reduce or hedge risk exposure.

Equilibrium between ETF prices and NAV was only reached after the Fed announced its support for secondary market liquidity for investment grade on March 23, and later clarified on April 9 that this would include some recent fallen angels and high-yield ETFs, although this would not include ETFs trading at a material premium.

Chart 8

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Chart 9

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ETFs Provided A Point of Entry And Exit

In periods of market stress, liquidity can quickly disappear from both primary and secondary corporate credit markets. However, during the recent period of heightened volatility, we believe rising trade volume in fixed-income ETFs helped to offset some of this illiquidity.

As ETF trades exhibited rising volumes through the market dislocation, they could provide another avenue for investors to enter (as well as to exit) fixed-income positions. While liquidity from rising ETF trades was not enough to offset the absence of new issuance, the steady information provided by buyers and sellers of ETFs helped to provide some signals on price discovery in a dislocated market, which may in turn have aided market confidence and ultimately assisted in reopening primary markets

Related Research

This report does not constitute a rating action.

Ratings Performance Analytics:Evan M Gunter, New York (1) 212-438-6412;
evan.gunter@spglobal.com
Contributor:Brian D. Luke, CFA, S&P Dow Jones Indices, New York (1) 212-438-8013;
brian.luke@spglobal.com
Secondary Contacts:Patrick Drury Byrne, Dublin (00353) 1 568 0605;
patrick.drurybyrne@spglobal.com
Andrew Paranthoiene, London (44) 20-7176-8416;
andrew.paranthoiene@spglobal.com
Research Contributor:Nivritti Mishra Richhariya, CRISIL Global Analytical Center, an S&P Global Ratings affiliate, Mumbai

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