Norway’s Sovereign Wealth Fund Plans $80 B Shift from Treasuries to Riskier U.S. Debt

In a move that’s raising eyebrows on both sides of the Atlantic, Norges Bank Investment Management – the arm that runs Norway’s $2.3 trillion sovereign wealth fund – has sent a polite yet decisive letter to the country’s finance ministry. The memo spells out a plan to cut roughly $80 billion of U.S. Treasury securities from its benchmark bond index.

Don’t mistake the sell‑off for a full‑blown exit. The fund is simply rebalancing: the 12.2‑percentage‑point drop in Treasury holdings will be largely offset by a jump of about 11.4 points into non‑government U.S. debt, most notably agency mortgage‑backed securities (MBS). In plain English, Norway wants a little more “spice” in its otherwise bland government‑bond diet.

Why the change? According to the letter, the risk in agency MBS isn’t about default – the likes of Fannie Mae, Freddie Mac and Ginnie Mae have the backing of the U.S. government – but about pre‑payment. Homeowners can refinance when rates fall, meaning investors get their principal back early and have to reinvest at lower yields. That pre‑payment possibility creates a “pre‑payment premium,” which the fund believes should be part of a truly market‑weighted index.

“A broad market index provides exposure to more risk premiums and gives a more diversified benchmark index than today,” the fund wrote. In other words, a basket that mirrors what’s actually out there, rather than a Treasury‑only showcase.

The overall dollar‑denominated exposure will stay almost flat – 52.5 % versus 52.9 % today – but the composition will shift. Government bonds will fall from 34.1 % of the portfolio to 21.9 %, while agency MBS and other non‑government U.S. debt climb. At the same time, the fund’s euro‑zone holdings will dip modestly, Japanese bonds will rise, and the UK slice stays steady.

It’s not just a numbers game. The timing feels political. The United States is wrestling with a $40 trillion national debt, a federal deficit flirting with $2 trillion this fiscal year, and a Treasury secretary who’s been vocal about keeping yields and the dollar in check. Add a more confrontational U.S. administration into the mix – trade skirmishes, NATO rhetoric, even talk of Greenland – and dollar assets start to look a little more precarious.

Central banks worldwide are already trimming the share of Treasuries in their reserves, leaning more on gold and diversified assets. Norway’s tweak could be a signal that even the most disciplined sovereign investors are looking beyond the safety‑first mantra.

“A government share of 50 % will be sufficient to cover liquidity needs, even in turbulent markets,” wrote Norges Bank Governor Ida Wolden Bache and CEO Nicolai Tangen. The message is clear: they’re not abandoning the dollar, just making sure the portfolio can earn a bit more when the market rewards risk.