The US Dollar Index (USDX) is an index (or measure) of the value of the United States dollar relative to a basket of foreign currencies. Is also called simply as Dollar Index.
It is a weighted geometric mean of the dollar’s value compared only with “baker” of 6 other major currencies which are:
Euro (EUR), 57.6% weight
Japanese yen (JPY) 13.6% weight
Pound sterling (GBP), 11.9% weight
Canadian dollar (CAD), 9.1% weight
Swedish krona (SEK), 4.2% weight and
Swiss franc (CHF) 3.6% weight
Dollar Index goes up when the US dollar gains “strength” (value) when compared to other currencies.
Dollar Index was started in March 1973, soon after the dismantling of the Bretton Woods system. At its start, the value of the US Dollar Index was 100.000. It has since traded as high as 164.7200 in February 1985, and as low as 70.698 on March 16, 2008.
The makeup of the “basket” has been altered only once, when several European currencies were subsumed by the Euro at the start of 1999.
Dollar Index is updated whenever US Dollar markets are open, which is from Sunday evening New York time (early Monday morning Asia time) for 24 hours a day to late Friday afternoon New York time.
Dollar Index can be traded as a Dollar Index futures contract on the IntercontinentalExchange (ICE). It is also available in exchange-traded funds (ETFs), options and mutual funds.
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