Data as of 17 September 2026 · Source: iShares LQD and HYG ETF holdings (BlackRock) · Updated daily

The dominance of financial institutions among the largest corporate bond issuers underscores the sector’s structural reliance on debt capital markets for funding. JPMorgan Chase, Morgan Stanley and Goldman Sachs collectively account for more than $2.2bn in outstanding bonds across these indices, reflecting both the scale of their balance sheets and the regulatory capital requirements that encourage wholesale funding diversification. Bank of America and Wells Fargo further reinforce the banking sector’s pre-eminence in investment-grade issuance. Technology’s growing presence is equally notable. Oracle, Amazon and Meta Platforms have emerged as substantial borrowers, a development that would have seemed improbable a decade ago when these cash-generative businesses eschewed leverage. Their prominence now reflects both strategic acquisition financing and shareholder-friendly capital return policies funded through debt issuance. The telecommunications sector, represented by AT&T and Verizon, remains a fixture among top issuers, though their positions have arguably diminished relative to technology peers. The absence of any high-yield names from the top ten confirms that market capitalisation in corporate bonds remains overwhelmingly an investment-grade phenomenon, with speculative-grade issuers typically maintaining smaller, more concentrated debt profiles.

Top 50 US Corporate Bond Issuers by Market Value Outstanding

Market values represent holdings within iShares LQD (investment grade) and HYG (high yield) ETFs only and are a proxy for — not the complete picture of — bonds outstanding. Actual bonds outstanding will be higher. Source: BlackRock iShares. Data refreshed daily after market close.