Here’s a quick look at the 3 largest currency pairs in the US Dollar Index.  At 57.6%, the EUR/USD has, by far, the largest impact on the $USD while the next two largest pairs, USD/JPY & GBP/USD make up another 25.5% if the index.  Therefore, these three pairs alone comprise over 83% of the US Dollar index.  Even if one doesn’t trade currencies but only equities, charting these key pairs as a supplement to your market analysis can often be advantageous in determining the timing, scope and duration of the existing or next major trend.  Note: the target listed on the USD/JPY chart below was the previous initial target from the falling wedge breakout & retest shown, not the current price target.