Norges Bank Investment Management disclosed plans to reduce U.S. Treasury exposure by approximately $80 billion, redirecting capital toward corporate bonds and mortgage-backed securities. The reallocation represents roughly 3.5% of the fund's total assets under management, which closed 2024 at $2.3 trillion. The proposal requires approval from Norway's Ministry of Finance and Parliament, with implementation expected across 2025 and early 2026.
The move marks the first significant fixed-income rebalancing since NBIM expanded its bond mandate in 2021. The fund currently holds approximately $240 billion in government debt globally, with U.S. Treasuries comprising the largest single sovereign allocation. NBIM cited persistent low yields on government paper and widening opportunity sets in investment-grade corporate debt as primary drivers. The fund's fixed-income portfolio returned 2.1% in 2024, lagging its equity book's 7.8% gain. Management noted that corporate credit spreads have compressed to levels that now offer favorable risk-adjusted returns relative to duration-only exposure.
The timing coincides with structural shifts in Treasury demand. Foreign central banks reduced net holdings by $318 billion in 2024, the largest annual decline since 2015. Japan's recent policy normalization has pulled liquidity from dollar-denominated sovereign debt, while China's holdings have remained flat near $775 billion for eight consecutive quarters. NBIM's exit adds supply pressure at a moment when the U.S. Treasury must refinance $9.2 trillion in maturing debt through 2025. The 10-year yield has already drifted 34 basis points higher since November, and a sustained $80 billion seller removes a structural bid that has historically absorbed auctions without volatility.
The reallocation also signals conviction in credit fundamentals. Investment-grade corporate spreads currently trade at 104 basis points over Treasuries, near the tightest levels since 2021, yet default rates remain below 1% across rated issuers. NBIM's shift implies confidence that spread compression can continue or at least hold, even as base rates reprice. The fund has historically favored large-cap issuers with multi-geography revenue streams, suggesting flows will concentrate in names like Microsoft, Johnson & Johnson, and Berkshire Hathaway rather than lower-tier credits. Mortgage-backed securities, the other stated destination, offer carry premiums of 140-160 basis points in agency paper, though prepayment risk complicates duration management.
Allocators should monitor Treasury auction results through Q2 2025, particularly the 10-year and 30-year tenors where NBIM holds the bulk of its sovereign book. If bid-to-cover ratios deteriorate below 2.2x consistently, it confirms the structural buyer base has thinned. Corporate bond issuance calendars will also reveal whether NBIM's demand pulls forward supply or absorbs existing float. The Federal Reserve's quantitative tightening program continues to remove $60 billion monthly in Treasury holdings, compounding the withdrawal of foreign official buyers. Any yield spike above 4.75% on the 10-year would likely pause the reallocation, as NBIM's mandate includes capital preservation alongside return generation.
The fund's last major portfolio shift occurred in 2019, when it exited $8 billion in oil and gas equities. That move preceded a sector drawdown of 22% over the following eighteen months. NBIM's fixed-income book has not undergone comparable restructuring since the 2008 financial crisis, when it doubled sovereign allocations amid credit market distress. The current proposal reverses that defensive stance, betting that monetary policy normalization has stabilized credit risk sufficiently to justify spread-chasing at scale. Parliament's debate begins in April, with a vote expected before summer recess.