The dollar index is a must in derivatives trading software. It is based on the weighted average ratio of several other currencies.

There is no single dollar index in essence, but because the dollar is an international currency, all kinds of exchange rates and commodities need to be denominated in dollars, so there is this thing, and its reference function is huge.

Analysis: 1, which is equivalent to other commodity analysis. Technical analysis can be used to analyze the trend of the US dollar. What waves, Fibonacci and moving average can be analyzed to some extent. 2. Fundamental analysis. Mainly the economic level of the United States and the influence of the United States on financial market intervention. Just as China is preparing to raise interest rates, it will affect people's currency exchange rate. But we didn't have a floating exchange rate before, so the impact was small.

If the euro appreciates, it will affect the decline of the dollar. At present, the weighted ratio of the euro exceeds 50%, and the dollar should fall.

Because international commodities are denominated in dollars, there is mutual influence.