Dollar Gains in May, but Wall Street Skeptical of Further Rallies

American exceptionalism could have reached another peak
Wells Fargo strategist Erik Nelson explains why the dollar's May gains may not hold as U.S. economic outperformance reaches unsustainable extremes.

The dollar posted a modest 0.7% gain in May, carried upward by expectations that the Federal Reserve would raise rates in early 2027 — yet this marked only the fourth monthly advance since the currency's decline began in 2025, a rhythm that speaks more to fragility than to renewal. Even as the greenback ticked higher, seasoned strategists at Morgan Stanley, Wells Fargo, and TD Securities were already mapping its retreat, pointing to a world where other central banks are tightening more aggressively, American economic exceptionalism may have crested, and crowded bets on AI stocks leave the dollar exposed. In the long arc of currency cycles, a bounce and a trend are very different things — and Wall Street, for now, is betting on the former.

  • The dollar's May rise rested on a single, fragile premise: that the Fed would outpace global peers in raising rates — a premise the data is already beginning to undermine.
  • Morgan Stanley and Wells Fargo strategists are circulating a near-consensus forecast of 1–2% dollar declines in Q3 and Q4, signaling that institutional money is quietly repositioning against the rally.
  • The Bloomberg dollar index has failed to close above its 200-day moving average since April, a technical ceiling that has held for over a year and continues to cap any sustained advance.
  • With the ECB priced for 60 basis points of hikes and the Bank of Japan for 40 — compared to the Fed's 30 — the interest rate advantage that once powered dollar strength is narrowing fast.
  • A structural risk lurks beneath the surface: American investors are heavily concentrated in AI and semiconductor stocks, and any valuation correction in those positions could accelerate dollar weakness.
  • The current moment is being read not as the start of a recovery, but as a temporary eddy — a brief reversal within a longer, downward-running current.

The dollar gained 0.7% through May, lifted by trader bets that the Federal Reserve would raise interest rates in early 2027. It was only the fourth monthly advance since the currency began its downward drift in 2025 — a statistic that captures just how tentative the recovery feels. And even as the dollar ticked upward, the strategists who guide billions in capital were already preparing for the rally to fade.

The mechanics were familiar: expectations of Fed tightening draw investors into dollar-denominated assets, pushing the currency higher. But beneath that surface logic, a deeper skepticism was taking hold. Analysts at Morgan Stanley, Wells Fargo, and other major houses converged on a shared view — the dollar would likely fall more than 1% in the third quarter and another 2% in the fourth.

Erik Nelson of Wells Fargo Securities put the doubt plainly: the United States had ridden a wave of economic outperformance that had now reached extremes. The gap between U.S. GDP and that of its ten largest trading partners was the widest in twenty-five years, outside the pandemic. Such disparities, he argued, don't persist — they correct. One technical signal reinforced the caution: the Bloomberg dollar index hadn't closed above its 200-day moving average since April, when a ceasefire with Iran eased geopolitical pressure. That moving average had acted as a ceiling for over a year.

The central bank calculus also cut against the dollar. Markets priced roughly 30 basis points of Fed hikes through March 2027, while the ECB was expected to deliver 60 and the Bank of England and Bank of Japan around 40 each. Howard Du of TD Securities noted that markets had lost confidence in the Fed's ability to lead the global tightening cycle the way it had after the pandemic — and he maintained a bearish dollar stance.

Nelson flagged one more vulnerability: American investors had crowded heavily into AI and semiconductor stocks. If those positions unwound, the dollar would face additional downside pressure. The May rally, in the end, looked less like the beginning of a sustained recovery and more like a temporary eddy. The strategists weren't dismissing near-term strength — they were simply cautioning against mistaking a bounce for a trend.

The dollar climbed 0.7% through May, a modest gain that arrived on the back of trader bets that the Federal Reserve would raise interest rates early next year. It was only the fourth monthly advance since the currency began its downward drift in 2025—a telling statistic about how fragile the recovery feels. Yet even as the dollar ticked upward, the strategists who guide billions in capital across Wall Street were already preparing for the rally to fade.

The mechanics were straightforward enough. When investors believe the Fed will tighten monetary policy, they buy dollar-denominated assets, pushing the currency higher. That's what happened in May. But beneath the surface, a deeper skepticism was taking hold. Analysts at Morgan Stanley, Wells Fargo, and other major houses were circulating a consensus view: the dollar would likely fall more than 1% in the third quarter and another 2% in the fourth. The conviction wasn't absolute, but it was widespread.

Erik Nelson, a macroeconomic strategist at Wells Fargo Securities in New York, articulated the doubt plainly. The United States, he argued, had ridden a wave of economic outperformance—stronger growth, better corporate earnings—that had now reached extremes. American exceptionalism, as he called it, had probably peaked. That meant the dollar's ability to keep climbing and break through established trading ranges was limited. The gap between U.S. gross domestic product and that of its ten largest trading partners, measured on a weighted average basis, hadn't been this wide in twenty-five years, apart from the pandemic years of 2020 and 2021. Such disparities don't persist forever. They correct.

One technical signal reinforced the caution. The Bloomberg dollar index hadn't closed above its 200-day moving average since April—roughly the moment President Donald Trump announced a ceasefire with Iran. That moving average had acted as a ceiling for more than a year. The index had briefly pierced it in March, during the height of Middle East tensions, but fell back. Now, with geopolitical risk receding, the pressure on the dollar was shifting downward again.

The calculus of central bank policy also weighed against further dollar strength. Markets were pricing in about 30 basis points of Fed rate increases through March 2027. The European Central Bank, by contrast, was expected to raise rates by 60 basis points. The Bank of England was priced for roughly 40 basis points, and the Bank of Japan for 40 basis points by year's end. In other words, the Fed wasn't expected to outpace its peers the way it had after the pandemic, when it began tightening in late 2021 and largely finished by 2023. Howard Du, a currency strategist at TD Securities USA, noted that the market had lost confidence in the Fed's ability to lead the way again. He maintained a bearish stance on the dollar.

Nelson also flagged a structural vulnerability. American investors had crowded into artificial intelligence and semiconductor stocks to an unusual degree. If those positions unwound—if valuations corrected—the dollar would face fresh downside pressure. The concentration itself was a risk. The May rally, then, looked less like the beginning of a sustained recovery and more like a temporary eddy in a longer current running the other way. The strategists weren't dismissing the dollar's near-term strength. They were simply saying: don't mistake a bounce for a trend.

American exceptionalism could have reached another peak, which will limit the dollar's ability to continue rising and break through established trading ranges
— Erik Nelson, Wells Fargo Securities
The market has lost confidence that the Fed can outpace other central banks the way it did after the pandemic
— Howard Du, TD Securities USA
A Conversa do Hearth Outra perspectiva sobre a história
Inventor

Why would traders bet on Fed rate hikes if the consensus is already skeptical of the dollar's prospects?

Model

Because the bet itself is what drove May's gains. The market priced in those hikes, the dollar rose on that expectation, and now strategists are saying the move has already happened. The question is whether the Fed will actually deliver, and whether it matters if other central banks are tightening faster.

Inventor

So the dollar is caught between its own strength and the weakness of that strength?

Model

Exactly. The U.S. economy is genuinely outperforming. That's real. But it's outperforming by so much that it's unsustainable. When you're that far ahead, the only direction is back toward the middle.

Inventor

What does the 200-day moving average actually mean to traders?

Model

It's a line in the sand. When a currency can't hold above it for months, it signals that the underlying momentum has shifted. The dollar tried to break through in March during the Iran crisis, but couldn't sustain it. That failure is meaningful.

Inventor

If the Fed doesn't raise rates as much as other central banks, won't that hurt the dollar anyway?

Model

That's the trap. The Fed is expected to raise 30 basis points. The ECB 60. If the Fed does raise, it supports the dollar. If it doesn't, the dollar falls. Either way, it's not leading anymore.

Inventor

What about those crowded AI and semiconductor positions Nelson mentioned?

Model

They're a time bomb. If everyone is long the same trade, and valuations get questioned, the unwinding could be violent. The dollar gets dragged down with it because those stocks are dollar-denominated assets.

Inventor

So May's rally was just traders front-running a story that's already over?

Model

More or less. They bought the dollar on the rate hike narrative, but the strategists are already looking past it to what comes next—and what comes next is probably lower.

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