Dollar index &; RegUSDX is an indicator that comprehensively reflects the exchange rate of the US dollar in the international foreign exchange market, and is used to measure the degree of exchange rate change of the US dollar against a basket of currencies. It measures the strength of the US dollar by calculating the comprehensive rate of change between the US dollar and a selected basket of currencies, thus indirectly reflecting the changes in US export competitiveness and import costs.

The dollar index is not from Chicago Board of Trade (CBOT) or Chicago Mercantile Exchange (CME), but from new york Cotton Exchange (NYCE). New york Cotton Exchange was founded in 1870, which was originally composed of a group of cotton merchants and middlemen. At present, it is the oldest commodity exchange in new york and the most important cotton futures and options exchange in the world.

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Since the second half of 1999, the American economy has been expanding continuously. Stronger consumer demand and the substantial expansion of corporate investment have led to a sustained and substantial increase in imports. However, due to the failure of export growth, the gap of trade deficit continues to widen. It stands to reason that this time must be solved by the effect of currency depreciation. However, because the United States still adheres to the strong dollar policy, the trade deficit continues to expand, which will inevitably affect the strong position of the dollar in the long run.

The dollar index is calculated by adding six exchange rates of the dollar against the euro, pound, yen, Canadian dollar, Swiss franc and Swedish krona, while the Dow Jones FXCM dollar index compares the dollar with the four most widely circulated currencies in the world: euro, pound, Australian dollar and Japanese yen. Its purpose is to be more relevant, easier to buy and sell and easier to use than the existing US dollar index.

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