Corporate Debt - Market Share Analysis, Industry Trends & Statistics, Growth Forecasts (2026-2031)

The corporate debt market size is projected to be USD 59.5 billion in 2025, USD 61.29 billion in 2026, and reach USD 74.56 billion by 2031, growing at a CAGR of 4% from 2026 to 2031. This report is segmented by Debt Instrument (Corporate Bonds and Syndicated Loans), Credit Quality (Investment Grade, and More), Issuer Type (Financial and Non-Financial Corporations), Industry Sector (Energy and Utilities, and More), and Geography (North America, South America, and More). The Market Forecasts are Provided in Terms of Value (USD).

Global Corporate Debt Market Trends and Insights

AI Infrastructure and Data-Center Financing Is Reshaping the Bond Market's Sector Composition

AI infrastructure investment is a major source of additional corporate bond supply in the corporate debt market. The 5 largest hyperscalers issued USD 121 billion in United States corporate bonds during 2025, more than 4 times their USD 28 billion annual average in 2020 through 2024. Six major tech issuers had collectively issued approximately USD 244 billion in bonds by mid-2026, increasing the role of a small group of issuers in investment-grade credit markets. AI-related bonds represented 14% of the United States investment-grade market and exceeded banks as the largest sector in the JPMorgan United States Liquid Index. Hyperscalers had net leverage of 0.4-0.7x, compared with just under 3x for the rest of the investment-grade universe, though Morgan Stanley data show this leverage ratio rising sharply to approximately 1.8x by mid-2026 as issuance accelerated. A slowdown in AI spending could still affect index funds and pension portfolios with passive exposure.

Corporate Refinancing and the Maturity Wall Generate Structural Deal Flow

Rated global corporate debt maturing between 2025 and 2029 totals USD 12.4 trillion across bonds, loans, and revolving facilities. The United States component totals USD 5.9 trillion and is expected to peak at USD 1.461 trillion in 2028. In the United States alone, speculative-grade non-financial maturities are projected to rise from USD 254 billion in 2026 to USD 682 billion in 2028. Many issuers will refinance debt that was raised when policy rates were near zero, which can lift costs by 150 to 400 basis points over earlier coupons. Investment-grade companies are generally better positioned to absorb these costs than mid-market and B-rated borrowers. The resulting demand for amend-and-extend transactions and private credit restructurings supports deal flow even when broadly syndicated loan spreads tighten.

Higher Interest Costs and Refinancing Expenses Compress Margins for Weaker Borrowers

Refinancing at current rates is constraining issuance appetite among lower-rated borrowers in the corporate debt market. At the end of 2025, 15% of non-investment-grade debt carried an interest cost of 8% or more, compared with 9% in 2022. The proportion of debt priced at 2% or below fell from nearly 25% in 2021 to 14% in 2025. Software companies account for 16% of the leveraged loan market and face both AI-related revenue disruption and refinancing needs. United States investment-grade upgrades ran at a 3:1 ratio to downgrades in Q2 2026, though that broad result conceals pressure among weaker borrowers. United States dollar strength can further increase debt-service costs for emerging-market issuers with hard-currency obligations and local-currency revenue.

Other drivers and restraints analyzed in the detailed report include:

• Growth of Private Credit and Alternative Corporate Debt Channels Challenges Public Market Primacy
• Emerging-Market Corporate Debt Development Diversifies the Issuer Base
• Rising Corporate Leverage and Debt-Service Burdens Signal Structural Fragility in Speculative-Grade Segment

Segment Analysis

Corporate bonds held 61.22% of the corporate debt market size in 2025, while syndicated loans accounted for the remaining 38.78%. Corporate bonds are projected to grow at a 4.34% CAGR from 2026 to 2031, which makes the largest instrument segment the fastest-growing one. The share of United States investment-grade bonds that did not trade weekly fell to 10% in 2025. Public bond markets can efficiently support large transactions requiring substantial scale. These conditions have made public bond execution more competitive for large transactions.

United States corporate bond issuance reached USD 1.681 trillion through July 2026, up 26.9% year over year. Average daily trading volume increased 14.4% to USD 68.1 billion during the same period. Seven United States investment-grade deals of USD 25 billion or more had priced in 2026, equal to the total recorded in the preceding 7 years. Private credit assets under management reached USD 1.8 trillion in June 2025 and were on course to reach USD 2 trillion in 2026. AI-related private credit transactions totaled USD 59 billion in 2025, and their share of private credit deal value rose from 9% to 34%.

Investment-grade held 66.89% of overall corporate debt financing in 2025, supported by demand from pension funds, insurers, and sovereign wealth funds. Unrated debt is forecast to grow at a 5.42% CAGR through 2031, the highest rate within the credit quality segmentation. Investment-grade companies generated USD 768 billion in net issuance during 2025. Financial and non-financial companies each accounted for a broadly equal share of that investment-grade issuance. Investment-grade volumes continued to provide the core of high-quality corporate debt issuance.

Unrated debt is expanding as first-time emerging-market issuers and smaller mid-market companies access capital without the cost and delay of a public rating. The 3:1 ratio of United States investment-grade upgrades to downgrades in Q2 2026 supported investment-grade issuance despite elevated absolute yields. AI-tagged bonds represented 15% of the United States investment-grade market in 2025, raising sector and duration concentration in a segment typically valued for diversification. Joint-venture-backed 144A bonds for AI data-center campuses add exposure that may not be fully visible on issuer balance sheets. Enhanced SEC disclosure rules and the EU prospectus regulation are improving disclosure for new unrated issuers.

Complete Report Scope:

• By Debt Instrument
  • Corporate Bonds
  • Syndicated Loans
• By Credit Quality
  • Investment Grade
  • Non-Investment Grade
  • Unrated
• By Issuer Type
  • Financial Corporations
  • Non-Financial Corporations
• By Industry Sector
  • Energy and Utilities
  • Industrials and Manufacturing
  • Technology, Media and Telecommunications
  • Healthcare and Life Sciences
  • Consumer Products and Services
  • Real Estate
  • Other Sectors
• By Geography
  • North America
    • United States
    • Canada
    • Mexico
  • South America
    • Brazil
    • Argentina
    • Rest of South America
  • Europe
    • United Kingdom
    • Germany
    • France
    • Italy
    • Spain
    • Rest of Europe
  • Asia-Pacific
    • China
    • Japan
    • India
    • South Korea
    • Australia
    • Indonesia
    • Thailand
    • Malaysia
    • Singapore
    • Vietnam
    • Rest of Asia-Pacific
  • Middle East and Africa
    • Saudi Arabia
    • United Arab Emirates
    • Turkey
    • South Africa
    • Egypt
    • Rest of Middle East and Africa

Geography Analysis

North America held 39.92% of overall corporate debt financing in 2025, supported by the depth of the United States investment-grade and high-yield bond markets. United States investment-grade outstanding bonds totaled USD 11.7 trillion in Q1 2026. United States investment-grade issuance is tracking toward USD 1.81 trillion in 2026 as AI capital spending and merger activity lift supply. The United States corporate debt due from 2025 through 2029 totals USD 5.9 trillion and is expected to peak at USD 1.461 trillion in 2028. Electronic trading accounted for 50% of United States corporate bond trading in November 2025 and has reduced execution costs while broadening retail participation.

Europe remains a significant source of corporate debt market activity, with issuance centered in the United Kingdom, Germany, France, Italy, and Spain. Euro-denominated foreign-currency credit grew at an 11% annual rate in 2025, bringing outstanding amounts to EUR 4.9 trillion. European disclosure requirements, including the Corporate Sustainability Reporting Directive and the European Green Bond Standard, are shaping issuer practices in sustainable debt. Brazil raised USD 5.9 billion in sovereign bonds in April 2026, while non-financial emerging-market corporate issuance outside China rose 66% year over year in that month. Emerging-market growth is projected at 4.1% in 2026, which is 2.6 percentage points higher than developed-market growth.

Asia-Pacific is projected to grow at a 5.23% CAGR through 2031, the highest regional rate in the corporate debt market. Asian international bond issuance increased 14% in 2025 to USD 527 billion, while ASEAN issuance recovered 31% above the 2022 through 2024 average. China accounts for most Asian corporate bond issuance, while India, Japan, South Korea, and Singapore are expanding domestic and international debt markets. The Middle East and Africa are seeing higher issuance tied to sovereign infrastructure programs, with Saudi Arabia, the UAE, and South Africa leading activity in the corporate debt market. Digital bond activity is also increasing the region's connection with global capital-market infrastructure.

List of Companies Covered in this Report:

• JPMorgan Chase & Co.

Additional Benefits:

• The market estimate (ME) sheet in Excel format
• 3 months of analyst support