The green bonds boom is only growing in size.

Today, rating agency Moody’s reported that green bond issuance hit a record high in the third quarter of this year demonstrating the expanding demand for ethically-labeled fixed-income instruments from investors.

Green bonds were created to fund projects that have positive environmental and climate benefits with the majority of bonds issued use of proceeds” or asset-linked bonds. Proceeds from these bonds are earmarked for green projects but are backed by the issuer’s entire balance sheet.

According to the Moody’s report, $32.7 billion of green bonds were issued globally in the three months to end-September, topping the $32.2 billion raised in the second quarter of the year. 83 issuers brought 111 transactions to market, with average transaction size increasing 6% quarter-on-quarter to $295 million. The report also notes $95 billion has been raised from green bonds during the first three quarters of this year, up 49% year-on-year, with full-year volumes set to top $120 billion.

Data from HSBC suggests that Moody’s full-year issue totals may be conservative estimates. The Asia-focused bank noted recently in a report that green bond issuance is on track to hit $125 billion this year, followed by supply of $140 billion to $180 billion for 2018. This would make the green bond market $423 billion to $463 billion in size by the end of 2018.

Green Bonds Boom Set Hit A Record This Year

The demand for investors from these products is understandable as they offer both yield, opportunity for capital gain and the knowledge that buying the bond will contribute positively to the environment. One trade HSBC recommends, for example, is Banco Nacional de Costa Rica’s $500 million 5.875% of April 2021 green bond. This Ba2/NR/BB security was issued in April 2016:

“Proceeds from this security are intended for renewable energy, namely wind, solar, and hydro, as well as for and ‘wastewater’ projects. For the hydro component, Banco Nacional will only invest in projects up to a total installed capacity of 50MW.