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RSI Indicating USD May Be Bottoming
07/15/2009 12:01 am EST
J. Welles Wilder introduced the Relative Strength Index (RSI) in his 1978 book, New Concepts in Technical Analysis. RSI is best known as an overbought/oversold indicator. When RSI falls below 30, the market is considered oversold and traders should prepare their buy orders to take advantage of an expected rebound in prices. In an overbought market, RSI rises above 70, and when it falls below this level, traders sell.
Andrew Cardwell has refined the indicator with the idea of RSI range rules. He observed that in uptrends, RSI will usually stay between values of 40 and 80, while in bear markets, the indicator will typically fall as low as 20 and stay below 60.
Range rules indicate the market trend in Figure 1, which shows a weekly chart of the US dollar index. While RSI moved between 20 and 60, the dollar declined. A bull market in the dollar was accompanied by a new range for RSI.
Figure 1: RSI levels can help traders identify the larger trend in the market. Graphic provided by: Trade Navigator.
In recent price action, RSI has crossed under 40 as prices have declined. The most recent peak in RSI was below 60, indicating the longer trend remains down. In this case, RSI gave a very timely signal that the trend had changed. The chart pattern indicates the dollar may be bottoming, but cautious traders could wait for RSI to rise above 60 before taking a long position.
By Mike Carr, CMT
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