Labeled Bonds: Market Overview H1 2025

Research Paper
October 14, 2025

Preview

In our regular series dedicated to green, social, sustainability and sustainability-linked labeled bonds, we break down the market by multiple bond and issuer characteristics to identify key trends in this rapidly growing and increasingly diverse market.

Highlights:

  • The labeled-bond market saw a net addition of USD 303 billion in the first half of 2025, bringing the total outstanding amount to USD 5.2 trillion. Despite the 4% year-over-year decrease in gross issuance, labeled bonds continued to increase their presence in global bond benchmarks in H1 2025.
  • Green bonds continued to dominate the labeled-bond market, accounting for 57% of new issuance and 56% of all outstanding labeled bonds. Green bonds were followed by sustainability bonds (24% of issued and 19% of outstanding), social bonds (15% of issued and 19% of outstanding) and sustainability-linked bonds (4% of issued and 7% of outstanding).
  • Corporate issuers led issuance in the first half of the year with USD 296 billion worth of labeled bonds (56% of the total), while supranational, sovereign and agency (SSA) entities issued USD 235 billion (44%).
  • ESG leaders (those with an MSCI ESG Rating of AAA or AA) issued 57% of all new labeled bonds, while ESG laggards (MSCI ESG Rating of B or CCC) issued only 3%.
Cumulative return and factor attribution (labeled bonds vs. wider bond market) 

“Wider bond market” refers to bonds that were constituents of MSCI Government, Provincial and Municipal and Corporate Bond Indexes during the study period (n=14,018). “Labeled bonds (sample)” refers to labeled bonds included in these MSCI bond indexes during the study period (n=1,234). Performance attribution was conducted using the MSCI Multi-Asset Class Factor Model in MSCI’s BarraOne® risk and portfolio-management analytics platform. Past performance does not indicate future returns. Data as of June 30, 2025. Source: MSCI ESG Research

Read the full paper

Provide your information for instant access to our research papers.

Sustainability Bond Indexes Were Resilient amid Market Turmoil

We previously found that stocks and bonds of companies that were more resilient to sustainability risks exhibited lower market volatility. Through the initial market turmoil that followed the U.S. tariff announcements on April 2, we tested whether this resilience would hold true for corporate bonds.

Sustainable-Debt Dispatch

Integrating sustainability and climate risk and impact into bond and private-debt analysis is becoming an increasingly important aspect of portfolio construction. This paper discusses a range of metrics that could guide investors in making these assessments.

Sustainable investing powered by insight

MSCI’s sustainability data, models, ratings and metrics enable you to better manage risk and identify opportunity.

The content of this page is for informational purposes only and is intended for institutional professionals with the analytical resources and tools necessary to interpret any performance information. Nothing herein is intended to recommend any product, tool or service. For all references to laws, rules or regulations, please note that the information is provided “as is” and does not constitute legal advice or any binding interpretation. Any approach to comply with regulatory or policy initiatives should be discussed with your own legal counsel and/or the relevant competent authority, as needed.