Currency Markets and Your Portfolio: When the Dollar Moves, What Happens?

By: Reed C. Fraasa, CFP®, RLP®, AIF®

Most of my clients do not think much about currency markets. They think about their retirement, their kids' college, their business, and their taxes. Currency movements feel like something that happens in the background — abstract, global, vaguely relevant. And then a headline pops up warning about a "collapsing dollar" or a "surging greenback," and suddenly everyone wants to know what it means. 

Let me give you a straight answer. 

A currency is simply the price of one nation's money compared to another's. When the U.S. dollar strengthens, it buys more euros, yen, or pounds than it did before. When it weakens, it buys less. That movement has real consequences — it just rarely produces the disaster or the windfall the headlines imply. 

A strong dollar lowers the cost of imported goods. Americans traveling abroad feel richer. U.S. companies importing raw materials enjoy lower costs. But those same companies selling products overseas suddenly look expensive to foreign buyers. Their sales can suffer. The reverse is equally true. A weak dollar makes American exports more competitive abroad and can boost the foreign earnings of multinational companies when converted back into dollars. But it also makes imported goods more expensive here at home, which can feed inflation. 

There is no universally good outcome from currency movements. There are only winners and losers — and which group you fall into depends on where you sit in the economy. 

Forecasting where the dollar goes next is notoriously difficult. Exchange rates are driven by interest rates, inflation expectations, government debt levels, trade flows, geopolitical events, and investor psychology — often all at once, often in conflict with each other. Professional currency traders with enormous research teams get this wrong for years at a stretch. The humility required to manage money well starts with accepting that currencies are among the hardest things in finance to predict. 

History makes that point clearly. 

During the late 1990s, the dollar ran hot. Capital poured into the United States during the technology boom. Then the cycle reversed. From roughly 2002 through 2008, the dollar weakened substantially against most major currencies. The euro climbed from around $0.85 in 2000 to nearly $1.60 by 2008. That is not a rounding error. That is a complete transformation of the global currency landscape over less than a decade. 

Then it reversed again. The Global Financial Crisis sent investors rushing back into dollars as a safe haven. From roughly 2011 through 2022, the dollar strengthened on the back of relatively stronger U.S. economic growth, higher interest rates, and persistent global demand for dollar-denominated assets. The euro briefly traded near parity with the dollar — something many serious economists had said was unlikely.  

The dollar strengthened sharply again in late 2024, gaining more than 6% on the year as markets anticipated higher interest rates persisting and trade and geopolitical uncertainty drove demand for safety. Then, 2025 brought a reversal. The dollar weakened as U.S. interest rates began easing and investors reassessed long-term growth expectations. The euro posted one of its strongest annual performances against the dollar in years. Into early 2026, currency markets remain volatile — the dollar alternating between short-term rallies tied to global risk appetite and broader weakness driven by structural concerns. 

This pattern repeats. Not on a schedule. Not predictably. But it repeats.  

The reason I walk through this history is not to impress you with the data. It is to make one point: investors almost always assume that whatever is happening now will keep happening. When the dollar is rising, it feels permanent. When it weakens, headlines question the future of the United States or the dollar's status as the world's reserve currency. Both reactions are usually wrong. The cycle turns. It always has. 

For long-term investors, there is a more important question than where the dollar goes next. The question is: do you already have currency exposure in your portfolio, and do you understand it? 

If you own international stocks, foreign bonds, multinational companies, or global mutual funds — and most diversified portfolios do — then you already have currency exposure. You may not have thought about it in those terms, but it is there. When a foreign stock market rises 10% in local currency terms, and the local currency simultaneously weakens 10% against the dollar, an American investor ends up roughly flat. Conversely, a lackluster overseas market can produce strong returns for American investors if the local currency appreciates against the dollar. The underlying investment and currency movements are both working toward your outcome at the same time. 

This is not a flaw in international investing. It is part of the deal. Global diversification does not mean winning every year in every market. It means preparing your portfolio to navigate many possible futures — not just the one you're living in right now. 

I tell my clients that reacting to currency headlines is just another form of market timing. And market timing almost always disguises itself as sophistication. It feels like a rational response. It rarely produces one. 

At HIGHLAND, we build portfolios that are designed to survive a world we cannot fully predict. Currency markets are one piece of that larger uncertainty. The dollar will be strong at times. It will be weak at times. The headlines will be alarming either way. 

You do not build lasting wealth by correctly forecasting every twist in global currency markets. You build it by staying disciplined through all of them. 

Reed C. Fraasa is a CERTIFIED FINANCIAL PLANNER™ and founder of HIGHLAND Financial Advisors, a Fee-Only financial planning firm that offers comprehensive financial planning, retirement planning, and investment management. Reed has  30 years of experience as a fiduciary advisor and is the author of The Person is the Plan®, a unique financial planning process. Reed was a frequent guest contributor on PBS Nightly Business Report and has been featured in the New York Times, Wall Street Journal, and Star Ledger newspapers.  

The foregoing content reflects the opinions of Highland Financial Advisors, LLC, and is subject to change at any time without notice. Content provided herein is for informational purposes only and should not be used or construed as investment advice or a recommendation regarding the purchase or sale of any security. There is no guarantee that the statements, opinions, or forecasts provided herein will prove to be correct. 

Past performance may not be indicative of future results. Indices are not available for direct investment. Any investor who attempts to mimic the performance of an index would incur fees and expenses, which would reduce returns.

Securities investing involves risk, including the potential for loss of principal. There is no assurance that any investment plan or strategy will be successful or that markets will act as they have in the past.

The above article was written with the assistance of artificial intelligence (AI).