Wall Street banks capitulate on euro bets as US interest rates rise

The euro trade that Wall Street loved is falling apart. Major banks are pulling back from bets on a stronger euro as the gap between US and European interest rates widens in ways that favor the dollar.

The rate gap nobody can ignore

On June 17, the Fed held its federal funds target range steady at 3.50-3.75%. Nine of 19 Fed policymakers projected at least one rate hike before year-end, pushing the median end-2026 funds rate forecast up to 3.8%.

Markets moved fast. Traders are now pricing in a possible Fed rate hike as early as October 2026, with an 85% probability assigned to a December move. The dollar index jumped 0.85% in a single session following the hawkish signal.

The ECB raised its deposit facility rate by 25 basis points to 2.25% on June 11. If US rates are heading toward 3.8% or higher while European rates sit at 2.25%, capital flows toward the better yield.

Why banks are retreating

Earlier this year, a popular trade on Wall Street involved betting that the euro would strengthen against the dollar. The thesis made sense at the time: Europe was normalizing policy, the US economy showed signs of cooling, and rate convergence seemed plausible.

The Fed’s refusal to signal rate cuts, combined with projections for potential hikes, has blown up the convergence narrative. When nearly half the Fed’s voting members want higher rates, it’s hard to argue the dollar is about to weaken.

What this means for investors

The most immediate implication is continued dollar strength. A stronger dollar makes US assets more attractive to foreign investors, which could drive additional capital into American equities and bonds. It also makes dollar-denominated commodities more expensive for the rest of the world.

The key variable to watch is whether the Fed actually follows through on rate hikes. Market pricing of an 85% probability for a December move is significant, but if US economic data softens meaningfully in the second half of the year, the hiking narrative could evaporate, and dollar longs would find themselves on the wrong side of the trade.

If the gap between 2.25% in Europe and 3.8% or higher in the US continues to widen, the euro weakness trade has room to run. But if the ECB surprises with more aggressive tightening, or if the Fed blinks, the current positioning could reverse.

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