The U.S. dollar enters the second half of 2026 as the world’s best-performing major currency.
Expectations of higher U.S. interest rates and strong demand for American assets have supported the currency. Investors continue to favour the United States because of its resilient economy, booming artificial intelligence sector and attractive financial markets.
This trend could create further pressure for the euro, Japanese yen and emerging-market currencies.
U.S. Dollar Leads Global Currencies
The dollar gained approximately 3% during the first half of 2026.
That performance marks a major turnaround from the same period a year earlier. At that time, the currency had fallen by more than 10%, recording its steepest first-half decline since the early 1970s.
Concerns surrounding U.S. tariff policy played a major role in the previous decline.
The situation has now changed. Strong economic growth and expectations of tighter monetary policy have renewed demand for the dollar.
Interest-Rate Expectations Support the Dollar
A potential long-term ceasefire involving Iran has reduced oil prices and eased some inflation concerns.
However, investors still expect the Federal Reserve’s next interest-rate move to be an increase rather than a reduction.
The U.S. economy remains strong, partly because of heavy investment in artificial intelligence and data-centre infrastructure.
A resilient economy gives the Federal Reserve more freedom to keep borrowing costs high or raise them further.
Hawkish Federal Reserve Strengthens Rate-Hike Bets
Federal Reserve Chair Kevin Warsh has maintained a hawkish position and continued to focus on persistent inflation.
U.S. inflation remains above the central bank’s annual target of 2%.
Traders now expect at least one interest-rate increase during 2026. Markets also see roughly a 50% probability of a second hike.
Only a few weeks earlier, investors expected the Federal Reserve to leave rates unchanged.
This rapid shift in expectations has provided strong support for the dollar.
Yen and Euro Remain Under Pressure
The dollar is trading near a 40-year high against the Japanese yen, increasing concerns among Japanese officials.
It is also close to its strongest level of the year against the euro.
A stronger dollar makes American goods and services more expensive for foreign buyers. Nevertheless, international investors and companies continue to direct money toward the United States.
Stephen Jen, chief executive and chief investment officer at Eurizon SLJ Asset Management, said the strong dollar was unwelcome for both the United States and the rest of the world.
However, he added that U.S. companies and American assets remained too attractive for many investors to ignore.
Foreign businesses are also investing heavily in the United States to establish a presence in the world’s largest economy. These capital flows provide additional support for the currency.
Weak Currencies Raise Import Costs
Central banks and governments around the world are struggling with the effects of weaker domestic currencies.
A declining currency increases the local cost of imported goods and services.
Although energy prices have eased, food, travel and other everyday expenses remain high in many countries.
The South Korean won has fallen to record lows, creating concerns for regulators despite strong performance in the country’s stock market.
Several emerging economies, including India, have intervened to support their currencies. Others have raised interest rates to limit the effects of dollar strength.
Investors Increase Bullish Dollar Bets
Investors have accumulated positions favouring further dollar gains at the fastest first-half pace on record.
Data from the Commodity Futures Trading Commission showed that speculators held a net long dollar position worth approximately $30 billion.
That was the largest bullish position recorded since the beginning of Donald Trump’s second presidency.
Net dollar holdings increased by around $37 billion during the first half of the year. This was the fastest buildup since CFTC records began in 2012.
Higher U.S. Real Rates Could Drive Further Gains
Joseph Purtell, a portfolio manager at Neuberger, said rising real interest rates could push the dollar higher in the near term.
He also suggested that the currency may break above the trading range it has maintained during the previous six to nine months.
However, his firm expects the dollar to weaken over the longer term.
Concerns about the sustainability of U.S. government finances could eventually reduce confidence in the currency.
U.S. Economy Continues to Beat Expectations
American economic data has delivered a series of positive surprises since April.
Corporate earnings have also exceeded market expectations, further supporting U.S. equities and the dollar.
Morgan Stanley warned that the euro could fall toward $1.10 if markets continue pricing in a more aggressive Federal Reserve.
The euro was trading at approximately $1.135 against the dollar.
AI Boom Attracts Record Capital
Artificial intelligence investment and major technology listings have attracted large amounts of international capital to the United States.
High-profile public offerings, beginning with SpaceX, have added to investor enthusiasm.
Bank of America estimates that a record $341 billion has entered U.S. equities so far in 2026.
At the same point last year, year-to-date inflows stood at approximately $134 billion.
The sharp increase highlights the continuing global demand for American stocks.
U.S. Technology Leadership Supports the Currency
The United States is home to the world’s largest cloud-computing companies, which are spending heavily on AI data centres.
It also hosts several leading quantum-computing companies and many of the businesses developing the infrastructure required for artificial intelligence.
This technological advantage strengthens the argument that the U.S. economy may continue outperforming other major regions.
Mabrouk Chetouane, global head of market strategy at Natixis Investment Management, said future economic growth would depend on computing capacity, energy and labour.
In his view, the United States is better positioned than other countries to benefit from that combination.
Strong Dollar Could Continue Into Late 2026
The dollar’s outlook remains supported by higher interest-rate expectations, strong economic data and record investment inflows.
The AI boom has also strengthened demand for U.S. companies and financial assets.
However, long-term concerns about government debt and fiscal sustainability have not disappeared.
For now, investors appear convinced that the United States remains the main winner in the global competition for capital, technology and economic growth.
