Norges Bank proposes $80B cut in US Treasury holdings

Norway’s $2.3 trillion sovereign wealth fund just told the world it wants to dump roughly $80 billion worth of US Treasuries. In a letter sent Tuesday to Norway’s finance ministry, Norges Bank Investment Management proposed slashing the government bond allocation in its benchmark index from 70% to 50%, a move that would ripple across the world’s deepest and most liquid debt market.

The proposal would reduce the fund’s US government bond weighting from 34.1% to 21.9%.

What NBIM actually wants to change

The fund currently holds approximately $215 billion in US Treasury securities, according to data as of the end of June 2026. The proposed $80 billion reduction represents a cut of about 37% of that position.

The freed-up capital wouldn’t leave the US entirely. NBIM wants to redirect it into non-government US fixed-income assets: agency mortgage-backed securities, corporate bonds, and government-related debt. The fund’s non-government fixed income allocation would rise from 16.2% to 27.6%.

Norges Bank Governor Ida Wolden Bache and NBIM CEO Nicolai Tangen argued that keeping 50% in government bonds still meets the fund’s liquidity needs during market stress, while opening the door to better returns.

Across all its government bond holdings globally, NBIM’s proposal would result in a $106 billion decrease in sovereign debt exposure.

Why Treasuries, and why now

US 10-year Treasury yields have reached about 4.79%, a level that reflects mounting concern about government debt loads across developed economies. NBIM’s letter also proposed changing how it weights its government bond sub-index, moving from a GDP-based methodology to one based on market value.

GDP-based weighting naturally overweights countries with large economies regardless of how much debt they’re issuing. Market-value weighting would instead reflect the actual size of each country’s bond market, which in practice means the index would more directly track how much debt governments are actually piling up.

The road to approval

This is a proposal, not a done deal. The letter to Norway’s finance ministry is advisory in nature, and the final decision rests with Norway’s political authorities. An Expert Council review is expected to be completed by January 2027, followed by parliamentary discussions in spring 2027.

If approved, the changes would be phased in gradually to minimize market disruption and transaction costs.

What this means for markets

The most direct consequence would be increased supply pressure in the Treasury market. If $80 billion in holdings are gradually unwound, that’s $80 billion in Treasuries that need to find new buyers, which pushes yields higher and raises borrowing costs for the US government.

The ripple effects extend to corporate bond and agency MBS markets, which would see increased demand from NBIM’s reallocation. That could compress spreads in those sectors.

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