Evidence is mounting that bonds that finance environmental projects perform better than conventional ones, HSBC Holdings Plc said in a report.
The U.K.'s largest bank said green bonds are trading closer to benchmarks than regular debt issued by the same entity, particularly in developed markets. This may be due to demand for the securities pushing investors to pay steeper prices for green bonds in the secondary market.
The bonds used for environmentally friendly projects are still being priced similarly to ordinary ones when they first sell, HSBC said. Investors that buy the instruments at issuance may sell them at a profit.
"Our analysis suggests there is value in green bonds for bond investors," wrote Michael Ridley, a green bonds and corporate credit analyst at HSBC who co-authored the report. This may dissipate in the future if there's a sharp rise in supply, he said.
