Currencies · Dollar index
US Dollar Index (DXY), computed by Upside
The value of the US dollar against a basket of six currencies, computed by Upside from the pairs it collects, using the official ICE weights.
How DXY is calculated
DXY is a geometric weighted average of six exchange rates, scaled so that March 1973 equals 100. A negative exponent means the dollar is the quote currency in that pair.
DXY = 50.14348112 × EUR/USD-0.576 × USD/JPY0.136 × GBP/USD-0.119 × USD/CAD0.091 × USD/SEK0.042 × USD/CHF0.036
Basket weights
| Currency | Pair | Weight |
|---|---|---|
| EUR | EUR/USD | 57.6% |
| JPY | USD/JPY | 13.6% |
| GBP | GBP/USD | 11.9% |
| CAD | USD/CAD | 9.1% |
| SEK | USD/SEK | 4.2% |
| CHF | USD/CHF | 3.6% |
Why Upside computes its own index
The official index from ICE is not available from free data sources. Upside applies the same formula to its own closing rates, so its value can differ slightly from the ICE quote at the same moment.
The dollar index and gold
Because gold is priced in dollars, the two often move in opposite directions. The relationship is loose and breaks down for weeks at a time, especially during crises when both are bought as safe havens.