The US dollar remained near a two-month high on Tuesday, supported by a continued climb in long-term Treasury yields. Even as softer inflation data reduced the odds of another Federal Reserve rate hike in the near term, the 10-year and 30-year Treasury yields pushed to fresh highs, keeping the greenback underpinned.
The dollar index, which measures the currency against a basket of major peers, hovered around 101.48 after gaining roughly 2% in September. That resilience came despite a cooler inflation reading that had initially led investors to scale back expectations for further Fed tightening.
Why long-term yields are driving the dollar
The key to understanding the dollar's strength lies in the split between short-term and long-term interest rates. Short-term Treasury yields, which are more directly tied to the Fed's policy rate, eased after the inflation data. But longer-term yields kept rising, reflecting a different set of forces.
Investors are not just pricing in where the Fed's benchmark rate will go. They are also demanding more compensation to hold long-dated government debt as fiscal deficits look larger and the Treasury issues more bonds to fund spending. This extra compensation, often called the "term premium," can push 10-year yields higher even when near-term rate expectations cool.
National Australia Bank, one of Australia's largest banks, noted that the dollar is currently acting more like a "10-year yield story" than a "next-meeting story." That helps explain why several currencies remained under pressure despite the less hawkish inflation news. The Australian dollar traded near $0.6940, and the New Zealand dollar hovered around $0.5636.
What this means for currencies and investors
When long-term yields set the tone, currencies can move even if the Fed looks closer to a "pause" than a "hike." Higher 10-year and 30-year yields raise the return global investors can earn on US assets, making the dollar more attractive. They also make hedging back into dollars more expensive, which tends to support the greenback further.
That dynamic is a headwind for lower-yielding, rate-sensitive currencies. The Australian and New Zealand dollars, for example, can struggle to hold rallies unless their own long-term yields rise as well, or unless their growth and inflation outlooks improve enough to shift expectations for their central banks.
For everyday investors, the key takeaway is that currency movements are not just about the Fed's next move. Long-term bond yields, driven by fiscal concerns and supply dynamics, can have an outsized impact on the dollar and, by extension, on international investments. A stronger dollar can affect the returns of US investors holding foreign assets, as well as the competitiveness of US exporters.
Broader market context
The dollar's strength comes amid a broader backdrop of rising yields globally. In Japan, for instance, policymakers have signaled a willingness to raise rates faster as inflation approaches target, which could eventually support the yen. Meanwhile, stocks have edged higher on the cooler inflation news, but the persistence of high long-term yields remains a concern for equity valuations.
Investors are also watching how other central banks respond. The European Central Bank and the Bank of England face their own inflation challenges, and their policy paths will influence currency dynamics. In the meantime, the dollar's strength is likely to persist as long as long-term US yields remain elevated.
What to watch next
Market participants will be closely monitoring upcoming economic data and Treasury auctions for clues about the direction of long-term yields. If deficits continue to widen and the Treasury increases issuance, the term premium could keep pushing yields higher, providing further support for the dollar.
For now, the dollar's position near a two-month high reflects a market that is increasingly focused on the long end of the yield curve. As National Australia Bank put it, this is a 10-year yield trade, not a next-meeting trade. That distinction is crucial for understanding why the dollar remains firm even as rate-hike bets fade.
