DXY— US Dollar Index
ICE U.S. Dollar Index · Live
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Currency Basket
The index tracks the dollar against these six currencies, at fixed weights.
About the US Dollar Index
What is the US Dollar Index?
The US Dollar Index (ticker DXY) measures the strength of the US dollar against a weighted basket of six major currencies. Created in 1973 with a base value of 100, it’s the most widely-watched gauge of the dollar’s overall value - a reading above 100 means the dollar has gained versus the basket since that baseline, and below 100 means it has weakened.
What moves the US Dollar Index?
The dollar index is driven mostly by relative interest rates and growth. When the Federal Reserve raises rates or is expected to stay higher-for-longer, dollar-denominated assets pay more and the DXY tends to rise. Risk sentiment matters too: in times of stress, investors buy dollars as a safe haven. Because the euro is 57.6% of the basket, anything that moves EUR/USD - European Central Bank policy, eurozone growth - moves the index almost as much as US data does.
Is a strong dollar good or bad?
A stronger dollar makes imports cheaper for Americans and helps cool inflation, but it also makes US exports pricier abroad and shrinks the overseas earnings of large US multinationals when converted back to dollars. It usually weighs on commodities and emerging markets. Whether it’s “good” depends on why it’s moving and which side of the trade you’re on.
DXY vs EUR/USD
Because the euro dominates the basket, the DXY and EUR/USD move almost as mirror images: when the euro falls against the dollar, the DXY rises, and vice-versa. If you follow the euro, you already have a good read on where the dollar index is heading.
Frequently Asked Questions
What is the US Dollar Index (DXY) today?
As of September 12, 2026, the US Dollar Index (DXY) is trading around 99.12, up 0.03% on the day. The value on this page updates in real time during market hours.
What is the US Dollar Index?
The US Dollar Index (DXY) measures the value of the US dollar against a basket of six major currencies - the euro, Japanese yen, British pound, Canadian dollar, Swedish krona and Swiss franc. It was set to a base of 100 in March 1973, so a reading of 105 means the dollar is about 5% stronger than that baseline against the basket.
Which currencies are in the DXY?
Six: the euro (57.6%), Japanese yen (13.6%), British pound (11.9%), Canadian dollar (9.1%), Swedish krona (4.2%) and Swiss franc (3.6%). The euro carries by far the largest weight, so the DXY is heavily driven by EUR/USD.
What does a rising DXY mean?
A rising DXY means the dollar is strengthening against the basket. That typically pressures commodities priced in dollars (such as gold and oil), weighs on emerging-market currencies, and can be a headwind for the overseas earnings of US multinationals.
Is a strong dollar good or bad for stocks?
It depends. A strong dollar can dent the reported earnings of US companies with large foreign revenue and pressure commodities, but it also reflects demand for US assets and can cool import-driven inflation. There is no fixed rule - it depends on why the dollar is moving.
How is the US Dollar Index calculated?
The DXY is a geometrically-weighted average of the dollar against its six basket currencies, normalized to a base of 100 from March 1973. Because the euro carries the largest weight, euro moves drive most of the index.
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Data from ICE via Yahoo Finance, updated in real time during market hours. For informational purposes only - not financial advice.