The very long end of the US yield curve has reached multi-year highs, with the 30-year Treasury yield climbing above 5% for the first time since 2014. The 20-year yield has followed suit, while longer maturities have outpaced shorter-term yields in a pronounced bear steepening.
Market participants attribute the surge to persistent inflation above the Federal Reserve's 2% target, resilient economic data, and heavy issuance of new government debt. Investors are demanding higher term premiums to hold long-duration bonds, especially as the US Treasury Department continues to auction large amounts of new issuance to fund budget deficits. The Federal Reserve's quantitative tightening program has also reduced its holdings of long-term Treasuries, removing a major buyer from the market.
Expectations for aggressive rate cuts in 2025 have faded. Futures pricing has shifted from multiple cuts at the start of the year to a higher-for-longer scenario, which pressures the long end disproportionately. As a result, average 30-year fixed mortgage rates have climbed back above 7%, cooling the housing market and reducing refinancing activity. Corporate borrowing costs are rising, potentially delaying capital expenditure and buybacks, while the government faces higher interest expenses.
At the same time, traders are shifting their focus from inflation prints to fiscal data. Recent months have shown a decoupling between inflation expectations and actual yield movements. The 10-year Treasury yield has displayed a stronger correlation with auction bid-to-cover ratios and Treasury refunding announcements than with CPI surprises, suggesting that supply dynamics are now more influential than price pressures. Investors who rely solely on CPI releases may miss the more sustained moves driven by fiscal announcements.
If fiscal data continues to drive yields, the Federal Reserve's policy path may be influenced more by funding costs than by inflation alone. Rising term premiums could tighten financial conditions, potentially reducing the need for aggressive rate hikes or even supporting cuts later in the year. However, fiscal expansion can also stimulate growth and keep inflation elevated, so the net effect depends on how markets weigh these competing forces. Foreign demand for US Treasuries, particularly from Japan and China, remains a key variable.
