Trading Activity Expands Across Corporate Bonds in US and Europe

Corporate bond market liquidity is growing across both the United States and Europe, driven by frequent trading in a wider range of individual debt securities from blue-chip issuers. In the US investment-grade market, concentration in top-tier debt has dropped. A company's top three bonds made up about thirty-five percent of overall trading volume in that firm's securities as of this month, marking a five percentage point drop compared to January 2023, according to Barclays strategist Zornitsa Todorova. A similar broadening of trading activity took place in European credit over roughly three and a half years. This wider trading activity mostly happens within investment-grade bonds. By contrast, high-yield credit markets and major technology firms, known as hyperscalers, continue to see trading volumes heavily focused on only a select few debt instruments. As trading spreads across a wider selection of a firm's debt, institutional investors get more freedom to express specific yield-curve or maturity views. This dispersion can also help reduce the extra cost or liquidity premium usually tied to buying less frequently traded securities. Todorova noted that as trading moves beyond benchmark issues, the gap in value between on-the-run and off-the-run bonds may shrink, building a more efficient and liquid issuer ecosystem. Trading liquidity within corporate issuers stays fluid after new debt is issued. In the investment-grade segment, an issuer's most heavily traded bond has a greater than two-thirds chance of staying among its top three most active securities one month later. However, that probability drops to fifty-five percent after a three-month period.

Context

Corporate bonds are debt instruments issued by companies to raise money from investors for business needs, expansions, or operations. Understanding how these bonds trade helps market participants assess overall financial health and borrowing costs across different sectors.