Technology firms are playing a growing role in US corporate credit markets, reaching record highs in both high-yield and investment-grade categories, according to recent reporting attributed to The Kobeissi Letter. The key headline is that technology companies now account for 8.3% of the US high-yield corporate bond market, the highest level on record. This figure marks a notable increase of about 2 percentage points since 2022, highlighting that the rise is not just a small fluctuation but a clear upward trend over multiple years.
High-yield corporate bonds, often referred to as “junk bonds,” typically involve issuers with lower credit ratings and therefore higher perceived risk. A growing share of the high-yield market held by tech firms indicates that debt financing from technology companies has expanded alongside investor demand for higher-yield opportunities. It also suggests that tech sector borrowing has accelerated as companies seek capital for growth, restructuring, investment in product development, acquisitions, and other corporate needs.
Beyond the high-yield market, the report also points to record representation for technology within the broader investment-grade market. Technology firms are described as accounting for 10.3% of the US investment-grade corporate bond market, also described as a record level. Investment-grade bonds are generally issued by companies with stronger credit profiles and lower default risk than high-yield issuers. The fact that technology’s share is rising in both segments suggests that the tech sector’s financing footprint is expanding across the credit spectrum, not only in riskier issuance.
The reported increases appear to be driven by a surge in technology sector debt issuance. In other words, the change in market share is presented as the result of tech companies issuing more corporate bonds relative to other sectors. As tech firms tap capital markets more aggressively, their outstanding debt grows, which in turn increases their proportion of overall market totals. The numbers imply that this has happened consistently enough to move the needle by significant margins—particularly the +2 point change since 2022 in high-yield.
These shifts matter because they can influence market structure and investor behavior. When one sector expands its share of corporate bond markets, it can affect liquidity, sector-specific risk pricing, and how portfolio managers allocate capital across different industries. For example, if more technology issuers become concentrated in credit indices, funds tracking those indices may experience larger exposures to tech credit risk by default. That can alter correlations across portfolios and influence how markets respond during periods of stress.
The report’s emphasis on record market shares suggests a broader narrative about the enduring strength and centrality of technology within corporate finance. Even as the composition of corporate credit evolves over time, the data cited indicates technology has become a larger and more consistent presence. In high-yield, the 8.3% share reaching a new record implies that investors are increasingly willing to provide capital to technology companies that may have less-established cash flows or more aggressive growth strategies, depending on their credit profile. Meanwhile, the record 10.3% share in investment grade suggests that even more stable tech issuers are maintaining or improving access to lower-risk funding channels.
Overall, the core message is that technology’s borrowing has become an increasingly prominent driver of US corporate bond market activity. The report frames the developments as a direct result of increased tech debt issuance and highlights that the sector’s representation has risen to record levels in both major credit categories. With technology firms now holding 8.3% of the high-yield market and 10.3% of the investment-grade market—both records, and with the high-yield share up by about 2 points since 2022—the figures illustrate how quickly the sector’s role has grown over the past few years.
Source: The Kobeissi Letter.
The Kobeissi Letter: BREAKING: Technology firms now account for a record 8.3% of the US high-yield corporate bond market. This percentage has risen +2 points since 2022, reflecting a surge in tech sector debt issuance. Furthermore, tech accounts for a record 10.3% of the US investment-grade. #breaking
— @KobeissiLetter May 1, 2026
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