The macro toolkit
The US dollar and the DXY
5 min
The US dollar is the gravitational center of global markets, and the DXY (the US Dollar Index) is the single best gauge of its overall strength. For a forex or macro trader it is an essential dashboard.
What the DXY actually measures
The DXY tracks the dollar against a basket of six major currencies, dominated by the euro (it is more than half the basket), plus the yen, pound, Canadian dollar, Swedish krona and Swiss franc. A rising DXY means the dollar is broadly strengthening; a falling DXY means it is broadly weakening.
Why it matters to almost every asset
- Commodities are priced in dollars. A stronger dollar makes oil, gold and metals more expensive in other currencies, which tends to push their prices down. Dollar up, commodities down is a frequent (not guaranteed) relationship.
- Emerging-market currencies like the real usually weaken when the DXY rises, because dollar-denominated debt gets harder to service and capital flows to the dollar.
- US exporters and multinationals earn less in dollar terms when the dollar is strong, a headwind for parts of the stock market.
How to use it
Before judging a single pair, glance at the DXY. If EUR/USD is falling, the DXY tells you whether it is euro weakness or broad dollar strength — a very different read. The DXY is the context that turns a one-pair move into a market-wide story, and it ties directly to the forex pairs and tools elsewhere on this platform.
This content is for educational and informational purposes only and is not investment, financial, tax or legal advice. Trading and investing carry risk, including the possible loss of capital. Any performance shown by third-party tools is hypothetical and not a promise of future results. Do your own research and consider professional advice before making any decision.