BMO Says Strong Dollar Trade Still Has Legs

The US dollar is the cleanest trade in a world of high interest rates and sticky inflation, according to BMO Capital Markets, which said Monday that foreign-exchange investors should keep betting on continued greenback strength.

The immediate consequence is simple: the call reinforces a market view that US assets still command a premium while rate differentials stay wide. That matters for everything from hedging costs to equity flows, and it lands as investors already rotate through crowded macro positions, from US stocks to commodities and rate-sensitive trades.

Background

BMO's argument rests on a familiar but durable idea. Higher rates change capital flows. Persistent inflation does too. When both arrive together, the currency backed by the deepest capital markets and the highest real return on offer tends to win. In this case, BMO says that's the dollar.

The broader backdrop is a global reset in price expectations. Central banks spent years trying to crush inflation after the post-pandemic surge, lifting policy rates across developed markets. Yet inflation has proved harder to kill than policymakers first expected, according to repeated commentary from institutions including the Federal Reserve and data tracked by the International Monetary Fund. The result: markets are adjusting to a longer period of elevated borrowing costs, not a quick return to the near-zero era.

That matters because foreign exchange is a relative market. Traders don't buy a currency in isolation. They buy one against another, weighing policy rates, inflation, growth, fiscal credibility and liquidity. The dollar still dominates on depth and convertibility, and the US still sets the tone for global risk appetite through the Treasury market. When investors want a clean expression of higher-for-longer rates, they keep ending up in the same place.

It's also why calls on the dollar often outlast the first reaction. A stronger greenback doesn't just reflect US conditions. It tightens financial conditions abroad, pressures importers, and forces central banks in smaller economies to defend credibility. That dynamic can become self-reinforcing. And it sits alongside wider market narratives already shaping capital allocation, including energy volatility and geopolitical risk highlighted in commodity trading and renewed appetite for selective risk after European stocks rebounded.

What this means

BMO's call is more than a house view on foreign exchange. It's a verdict on the post-2020 investment regime. The old playbook said inflation would fade, rates would normalize lower, and dollar strength would soften as global growth broadened out. That playbook is broken. Markets now have to price a world where inflation is less obedient, debt service costs are structurally higher, and capital rewards safety and yield at the same time.

That favors the dollar. It hurts borrowers outside the US with dollar liabilities. It pressures emerging-market balance sheets when domestic currencies weaken against the greenback, a pattern documented repeatedly by multilateral bodies including the World Bank. It also raises the bar for any sustained rally in non-US currencies unless their central banks can match US policy tightness or deliver a cleaner growth story. Few can.

Still, the sharpest point in BMO's view is its simplicity. Investors don't need a sprawling cross-asset thesis here. They need one liquid expression of the same macro fact: money is no longer free, and inflation still contaminates pricing power, wages and bond markets. The dollar captures that faster than most assets because it sits at the center of trade, funding and reserve management. That's why this call will resonate.

And it carries a harder message for policymakers outside Washington. If the dollar keeps strengthening under a high-rate regime, imported inflation gets tougher to contain, corporate refinancing gets more expensive, and domestic politics gets uglier. Countries that relied on cheap global liquidity now face a harsher cost of capital. The result: the dollar isn't just a trade. It's a transmission mechanism.

The dollar isn't just a trade. It's a transmission mechanism.

The logic behind the call is hard to escape. If inflation stays sticky and policy rates stay higher for longer, the dollar keeps its edge. If growth slows, the dollar often benefits from demand for liquidity and perceived safety anyway. That asymmetry is why strategists keep returning to it, even when positioning looks crowded. (The committee has not responded to requests for comment.)

But crowded trades don't fail just because they're crowded. They fail when the macro premise breaks. For the dollar, that would require a clean global disinflation trend, decisive rate cuts without a growth scare, and stronger confidence in non-US markets absorbing more capital. None of that is in the signal BMO is reading. And none of it is visible in the core regime argument now shaping investor behavior.

What to watch next is the path of central-bank guidance and inflation prints over the next policy cycle, especially signals from the Federal Open Market Committee and comparable decisions tracked by the Bank for International Settlements. If officials keep acknowledging that rates must stay restrictive for longer, BMO's dollar call won't look bold. It will look obvious.