Sustainable bonds in 2026: A year for consolidation

Key takeaways

• Despite economic uncertainty and regulatory change, sustainable bond issuance remains strong, reflecting the sector’s capacity to withstand volatility.
• The market is expanding beyond traditional regions, with notable activity in Latin America and Asia-Pacific, reinforcing global momentum.
• Regulatory frameworks such as the European Green Bond Standard are enabling new opportunities and shaping issuer behaviour, while clarity continues to improve.
• As the market consolidates, increased focus on infrastructure and projects supporting climate adaptation and transition finance will be crucial for sustainable growth.

Against a backdrop of economic uncertainty and evolving regulations, the sustainable bond market has displayed notable resilience. Robust issuance figures, expanding infrastructure investment, and regulatory changes have catalysed new opportunities and shaped market dynamics.

How has the sustainable bond market been performing?

Despite forecasts of a slowdown, the sustainable bond market proved unexpectedly strong in 2025. Global sustainable bond issuance came in just under USD 890 billion, a modest decrease of USD 75 billion compared to 2024, according to BNP Paribas data. Agnes Gourc, Co-Head of Sustainable Capital Markets Solutions at BNP Paribas, notes: “The market had been anticipating a bigger drop.” This resilience was bolstered by a wave of refinancing linked to the original green bond vintage, which changed reinvestment patterns among dedicated green bond funds. Green bonds continued to dominate, especially in Europe, where supportive regulation underpins robust issuance.

Public sector issuers-sovereigns, supranationals, and agencies-were particularly active in 2025, driving more than half of market volumes. Frederic Zorzi, Global Head of Primary Market at BNP Paribas, comments: “SSA issuers represented over 50% of sustainable bond market volumes in 2025, sustaining depth and liquidity through periods of volatility.” Latin America also stood out, emerging as an active region for sustainable bonds. Last year, Latam accounted for 8% of global sustainable bond issuance, compared to 3% in 2024, and showed strength especially in blue and social thematic bonds. This diversification has reinforced the market’s global momentum.

What’s changed for corporates and investors?

Corporates and investors are navigating shifting priorities and expanding infrastructure needs. Franck Rizzoli, Co-Head of Sustainable Capital Markets Solutions, explains: “Asset managers understand green bonds-how they work, the standards, and the impact they provide. This ease of understanding facilitates allocation across strategies and investor sales.” Climate transition remains a prominent theme, fuelled by heterogeneous investor demand.

The increasing need for infrastructure-most notably data centres, energy grids, and renewable power-has begun to reshape the market. Rizzoli adds, “Long-term investors such as pension funds and insurers recognise that short-term spending can lead to long-term outperformance.” The market continues to see growing interest in blue bonds, with Latam’s prominence underscoring global diversification. While blue bonds are still a niche segment, their gradual expansion signals the appetite for innovation within sustainable finance.

How are changing regulations shaping the market?

Regulatory changes have rapidly influenced both issuer and investor behaviour. The European Green Bond Standard (EuGBs) quickly gained traction, with multiple tranches issued by corporates, sovereigns, supranationals, agencies, and financial institutions. Agnes Gourc remarks, “Issuers had already done much of the work in demonstrating taxonomy alignment, so they were well set up.” This readiness enabled swift adoption and showcased leadership among issuers.

Corporates have expanded their use of the EuGBs, branching out from utilities to include transportation infrastructure, real estate, and financial services. Nevertheless, regulatory clarity is still evolving. Beyond Europe, regions like Asia-Pacific are embracing transition finance. Japan, for instance, has established advanced frameworks for decarbonisation, incentivising projects aligned with net-zero targets. “Investments in APAC are well suited to ‘amber’ taxonomies-projects that aren’t near-zero but that support net-zero pathways,” says Gourc. Outside Japan, growth depends on building investor appetite and issuer recognition for transition-themed bonds.

What can we expect from the sustainable bond market in 2026?

This year is expected to bring further growth in green bonds, driven by significant infrastructure investment, especially in artificial intelligence and renewable power. Zorzi points out, “Global infrastructure investment needs will be in the tens of trillions of dollars, eclipsing levels seen in the past twenty years.” This wave of investment will inevitably shape financing solutions and sustainable bond issuance.

Key themes such as climate adaptation, resilience, and transition finance are likely to become more prominent, reflecting heightened attention to physical climate risks and equitable transition objectives. Outcome bonds-where investors assume social or environmental performance risk-may see more activity, although deal flow remains bespoke and gradual. For projects able to generate credits, especially carbon credits, this funding model could be transformative.

2026 may be marked more by consolidation than radical innovation. As market participants continue to integrate sustainability risks and opportunities, the importance of these considerations is expected to rise to the forefront once again.

Conclusion

Resilience, global diversification, and regulatory evolution have defined the sustainable bond market over the past year. Issuance remains strong, investors stay focused, and regulation is supportive, setting the stage for the market’s next phase of development. As attention turns increasingly toward infrastructure and transition finance projects, the sector’s capacity to manage sustainability risks and generate real world impact will be the decisive factor in sustaining its growth.