Relationships between peers. According to the query, Sina Finance shows that. The dollar index has limited guiding significance for copper futures trading. The relationship between the dollar index and copper futures is equivalent, not a leading indicator. Both of them are related to the macro factors behind the reaction, such as currency, interest rate, economic growth and so on. Therefore, the dollar index is often negatively correlated with the trend of copper futures, because they also respond to the macro factors at that time. However, because copper is essentially a commodity, and the US dollar index belongs to the category of foreign exchange, the trend of the two will obviously not be negatively correlated, from the perspective of the range and even the direction of change. Therefore, the relationship between futures copper and the dollar is equivalent.