A government-appointed panel has proposed easing restrictions on nuclear weapons manufacturers, potentially unlocking billions of dollars in investment
Norway’s USD 2.3 trillion sovereign wealth fund could soon be free to invest in some of the world’s biggest defence companies, including Lockheed Martin, Boeing and BAE Systems, after a government-appointed commission recommended relaxing restrictions that have kept much of the industry out of its portfolio.
The proposal, published on October 15, marks a potential turning point for the Government Pension Fund Global, the world’s largest sovereign wealth fund, whose investment strategy has long combined commercial returns with stringent ethical requirements.
If adopted, the changes could lead to significant investments in Western arms manufacturers and reignite the debate over whether financial pragmatism should take precedence over the fund’s ethical commitments.
The commission, chaired by former central bank governor Svein Gjedrem, recommended allowing investments in companies involved in producing nuclear weapons if they are based in a nuclear-armed state recognised under the Treaty on the Non-Proliferation of Nuclear Weapons (NPT) and allied with Norway through Nato.
The proposed exemption could make 13 of the 14 companies currently excluded under the fund’s nuclear weapons criterion eligible for investment. They include Airbus, BAE Systems, Boeing, General Dynamics, Honeywell International, Lockheed Martin, Northrop Grumman, Safran and Thales.
India’s Larsen & Toubro would remain excluded under the proposed nationality-based exemption because India does not meet the specified criteria.
The recommendation is not yet government policy. Norway’s government is expected to consider the commission’s proposals before presenting its position in spring 2027, after which parliamentary deliberations will follow.
A strategic shift
The review reflects a growing tension between Norway’s ethical investment principles and the changing geopolitical environment. As a Nato member, Norway relies on the alliance’s collective defence arrangements, including the deterrent provided by nuclear weapons, while its sovereign wealth fund has been prohibited from investing in companies involved in producing those weapons.
Finance Minister Jens Stoltenberg, a former Nato secretary-general, has questioned this contradiction. The review was commissioned against a backdrop of heightened security concerns and debate over whether the existing framework adequately reflects Norway’s strategic interests.
The fund’s restrictions have major repercussions because many of the world’s largest defence contractors have diversified businesses that extend well beyond nuclear weapons.
Lockheed Martin manufactures fighter aircraft and missile systems, while Boeing operates in both commercial aerospace and defence. BAE Systems has extensive operations in military aircraft, naval systems, electronics and other defence technologies.
Under the existing framework, companies involved in producing nuclear weapons or key components can be excluded even when they also generate substantial revenue from conventional military equipment or civilian activities.
The proposed exemption would change the eligibility test for companies meeting the specified national and alliance criteria.
The distinction is relevant for investors. Defence spending has become a strategic priority across much of Europe as governments respond to Russia’s war against Ukraine, reassess military preparedness and seek to strengthen domestic arms production.
Greater access to established defence contractors would provide the Norwegian fund with a wider choice of companies in a sector that is benefiting from increased government procurement.
However, eligibility would not automatically translate into investment. The fund would still have to assess individual companies, their valuations and their prospects within its broader investment strategy.
Ethical investing under scrutiny
The defence proposal forms part of a wider review of the rules governing responsible investment. The commission has also suggested modifications to the institutional arrangements for assessing and addressing ethical concerns.
Under the previous framework, an independent Council on Ethics assessed companies against specified criteria and made recommendations on exclusion or observation. Norges Bank, which manages the fund through its investment management arm, made the final decisions.
Temporary guidelines introduced in November 2025 suspended new exclusion decisions under the earlier process while the government reviewed the framework. The Council on Ethics continues to monitor investments and provide information to Norges Bank, but its role has changed during the interim period.
The commission has proposed shifting towards a more integrated approach in which the central bank plays a greater role in assessing ethical risks and determining how to respond. It has also suggested changes that could reduce the public disclosure of the reasoning behind some investment decisions.
Supporters of reform argue that a more flexible framework would help the fund manage risks consistently and avoid exclusions that could constrain its investment universe without necessarily delivering meaningful ethical benefits.
Critics, however, warn that weakening independent oversight and transparency could undermine the credibility of a fund whose responsible investment policies influence corporate behaviour far beyond Norway.
The Norwegian Red Cross has opposed allowing investments in nuclear weapons manufacturers, arguing that such investments risk normalising weapons capable of causing catastrophic humanitarian consequences. The debate therefore extends beyond portfolio construction to the wider question of how a major state investor should exercise its financial influence.
Pressure following controversial divestments
The review also follows disputes over the fund’s decisions to withdraw investments from companies linked to activities in conflict zones.
In August 2025, Norges Bank decided to exclude Caterpillar and five Israeli banks over concerns about an unacceptable risk that they contributed to serious violations of individual rights in situations of war and conflict. The decisions followed recommendations from the Council on Ethics.
Caterpillar’s exclusion drew criticism from the administration of US President Donald Trump, adding a diplomatic dimension to what had previously been framed primarily as an investment and ethical question. Norway’s parliament subsequently paused ethics-based divestment decisions pending the review of the framework.
The episode highlighted the difficulties faced by a globally diversified investor when ethical standards intersect with national security, foreign policy and the commercial interests of major economies.
With more than half of its assets invested in the United States, the fund has considerable exposure to American markets. Its choices can affect individual businesses, change how investors feel, and draw the attention of governments whose businesses are not allowed to do business with it.
The fund’s managers must also balance ethical considerations against their responsibility to safeguard Norway’s financial resources for future generations. The fund finances a substantial share of the country’s public spending, making its long-term returns an important national economic concern.
Returns versus responsibility
The financial consequences of ethical exclusions have been relatively modest at the aggregate level, according to reports from Norges Bank Investment Management.
Since 2006, ethical exclusions have reduced the equity benchmark’s cumulative return by 2.42 percentage points compared with an index without such exclusions, equivalent to an annualised difference of 0.03 percentage points.
Product-based exclusions, particularly those involving weapons manufacturers, have been the principal source of the reduction.
These figures complicate the argument that relaxing the rules would necessarily produce a dramatic improvement in overall returns. While the ability to invest in previously excluded defence companies could provide additional opportunities, the actual benefit would depend on market performance, valuations and the size of any eventual holdings.
The proposed nuclear weapons exemption would not remove all ethical restrictions affecting the defence industry.
The proposed framework would still consider other criteria regarding weapons that violate fundamental humanitarian principles, human rights abuses, and the sale of military equipment in situations involving serious violations of international humanitarian law.
For investors, the immediate significance lies less in an imminent influx of capital than in the possibility of a fundamental change in how Norway defines acceptable investments.
The fund’s scale means that even a partial return to major defence contractors could attract considerable market attention, although any actual allocation would depend on subsequent decisions.
The government now faces a choice between preserving a distinctive ethical investment model and adapting it to a security environment in which defence capabilities have assumed greater importance.
Its eventual decision will help determine whether Norway’s wealth fund continues to draw a firm line around nuclear weapons production or adopts a more pragmatic approach to investing in the companies that underpin its allies’ military deterrence.
