Nordea Mortgage Bank issued the first EU Green Bond (EuGB) in covered bond format on Wednesday, a €1bn three year that is also the first EuGB from a Nordic financial institution, and the bank’s efforts were rewarded with an especially strong outcome, head of covered bonds Morten Keil told The CBR.

Although several EU banks have issued EuGBs since the Netherlands’ ABN Amro became the first financial institution to do so in February 2025, none had yet issued an EuGB in covered bond format. Some have noted the greater differential in execution – in terms of greenium, for example – achievable in unsecured green bonds, while the availability of appropriate assets and potential additional reporting requirements have been cited by others as a reason they have not issued EuGB covered bonds.

Nordea Mortgage Bank, the group’s Finnish covered bond issuer, previously sold three euro benchmark covered bonds under the Green Bond Principles (GBP) managed by ICMA, most recently a €750m three year in March 2025, while the group’s other Nordic covered bond issuers have similarly tapped local currency markets.

Keil, head of covered bonds at Nordea, said the banking group wanted to demonstrate its leadership in sustainable finance through the issuance of the first EuGB covered bond.

“We see ourselves as the leading sustainable issuer in the Nordics and want to remain at the forefront of developments,” he said. “This first ever EU Green Covered Bond and first EuGB from a financial institution in the Nordic region is a testament to that role and that ambition.

“Being an early adopter of EU regulation also shows our support for EU efforts to transition to the low carbon economy,” he added. “We haven’t yet seen where EuGBs will end up, but we are willing to push forward and lead the way in this area, to help strengthen their credibility and minimise the potential for green-washing.”

The additional requirements of EuGB regulation have contributed to only gradual take-up of the format by financial institutions so far, and Keil testified to the work the format involves.

“With a big team effort across the organisation,” he said, “we have spent a lot of time internally in establishing a truly robust internal set-up on processes to screen and select Taxonomy-aligned assets, and also meet the requirements on impact and allocation reporting as well as attain validation by our external reviewer. In EuGBs, we have stronger supervisory oversight compared to a traditional ICMA bond, and it is reflected in a robust internal governance.”

Nordea published the associated (six page) factsheet, which is required for EuGBs, on Monday, alongside a pre-issuance review from ISS confirming alignment with EuGB regulation and the EU Taxonomy. The factsheet notes that the EuGB also meet the GBP.

The proceeds from the bond will be used to refinance a Finnish portfolio of Taxonomy-aligned retail mortgages that support energy efficient housing. The portfolio is broadly similar to that eligible for the bank’s previous green bonds, even if EuGB requirements are stricter.

Nordea’s deal hit the market after the first two days of the week passed without any financial institutions supply in euros on the back of the latest bout of volatility, particularly evident on Monday. Improved sentiment on Tuesday nevertheless encouraged issuance in other asset classes and currencies, and on Wednesday, alongside Nordea, Australia’s Westpac sold a €1bn short five year covered bond, with further FIG supply in senior and even AT1 formats. The two covered bonds were the first new euro benchmarks in the asset class since Tuesday of last week (17 March).

“Our ambition has over the last years been to come with a green covered from each of our four mortgage companies each year as part of our sustainable issuance ambitions,” said Keil (pictured). “With that in mind, we decided to proceed with this after seeing the relatively constructive tone yesterday.

“The three year tenor meant that the offering was already on the defensive side, and it’s also a good spot on the curve currently,” he added, “but then the green format, and furthermore the EuGB format, makes it stand out more in a market like this.”

Leads Crédit Agricole, Deutsche, DZ, Nordea and SG opened books with initial guidance of the mid-swaps plus 16bp area for a euro benchmark-sized April 2029 issue, expected rating Aaa. After around two-and-a-quarter hours, they reported books above €1.25bn, including €100m of joint lead manager interest, and an hour later, the spread was set at 11bp for a €1bn size on the back of books above €1.4bn. The final book was above €1.37bn, including €100m of JLM interest, with around 50 accounts participating.

“We saw a positive opening of the market, but you never know these days, so we went into this aware of the volatility and headline risk,” said Keil. “But from the get-go we saw that the book was building well, and we were able to land at a very good level.”

The spread of 11bp over mid-swaps is the tightest on a euro benchmark covered bond since October 2023, when Germany’s LBBW sold a €500m three-and-a-half year public sector Pfandbrief at the same level.

“That goes to show how the resilience of the euro covered bond market amid volatile markets,” said Keil, “but also how this is reinforced by the addition of a green or EuGB label to an issuance.”

Around three-quarters of the deal was allocated to investors with strong sustainability commitments or ESG-dedicated funds, according to the issuer and leads’ classification, which Keil said was overwhelming.

“We were absolutely happy with the level of interest and the fact that we saw so many dedicated ESG investors,” said Keil. “That share is much larger than on our previous green bond issuances in traditional ICMA format, suggesting that this EuGB format can reach a broader range of investors.”

Banks and private banks took 55%, asset managers 24%, central banks and official institutions 10%, insurance companies and pension funds 7%, and corporates 4%. Germany, Austria and Switzerland were allocated 54%, the Benelux 23%, France 12%, the Nordics 6%, Italy 3%, and the UK and Ireland 2%.

The leads put the new issue premium at 2bp and claimed a greenium of 1bp, although Keil acknowledged that this was hard to assess in current markets.

“Again, we see less greenium in covered formats than in senior and subordinated, so this was in line with what we expected, rather than any sudden improvement on this EuGB,” he added. “And maximising greenium is not the underlying motivation for using the EuGB format.”

Having debuted in the format, Nordea expects to stick with it, even if GBP green bonds are expected to co-exist with EuGBs for the foreseeable future.

“We have done this because we believe in the format,” said Keil, “and we believe there is a future here. Our intention is not to do it once and then go back to issuing in ICMA format.

“It will depend on how the market evolves and how issuance is received, but based on yesterday’s deal, there is clearly an interest among investors, so, all else being equal, we will probably pursue the path of EuGBs going forward.”

As well as covered bond issuance in local currencies from its other issuers in Denmark, Norway and Sweden, Keil said Nordea could also consider unsecured EuGBs.