For institutional investors in the UK

A short history of labelled bonds

Adrienn Sarandi

Adrienn Sarandi

Head of ESG Strategy & Development

25 Mar 2021

Labelled bonds — such as green, blue, social, sustainable, transition and sustainability-linked bonds — which promote sustainability and better Environmental, Social and Governance (ESG) performance, are becoming an important part of financial markets and highlight the key role debt markets can play in funding and inspiring companies to contribute to sustainability.

In this paper, Adrienn Sarandi, Director of Fixed Income ESG, provides the background on labelled bonds and explores the key considerations associated with their use.


  • As an increasing number of investors look to align their portfolios with sustainability goals globally, it is important to understand how labelled bonds may help to achieve ESG as well as risk-return objectives in portfolios.
  • Green, sustainable or sustainability-linked bonds (SLBs) for example can help mitigate climate change risks as well as have the potential to generate attractive risk-adjusted returns. Social bonds on the other hand can finance new and existing projects with positive social outcomes.
  • Hence, labelled bonds can help align investors’ asset allocations with their ESG and performance objectives.

These are the views of the author at the time of publication and may differ from the views of other individuals/teams at Janus Henderson Investors. Any securities, funds, sectors and indices mentioned within this article do not constitute or form part of any offer or solicitation to buy or sell them.


Past performance does not predict future returns. The value of an investment and the income from it can fall as well as rise and you may not get back the amount originally invested.


The information in this article does not qualify as an investment recommendation.


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