|The US dollar has been in a fierce uptrend since July 2008. Recently, however, the relative strength index (RSI) has started to diverge with the price action in the dollar. This could well be a precursor of future weakness.|
|The RSI is a popular momentum indicator that gauges the relative strength of gains or losses in a security. Generally, it is best to see the RSI continually increasing when the price of a security is increasing as well. Just like with a stock, it is best to see a pattern of higher highs and higher lows.|
|On Figure 1, you will see two sets of lines. Starting with the yellow lines, you can see in the price pane that prices were moving up steadily. However, the line in the RSI pane was flat. This is the first divergence. The second divergence occurred where the red lines indicate. Prices have moved up to a new high, but RSI has not reached a commiserate new high. While a RSI divergence with price is not a sell signal by itself, it is a flashing light warning that something may be wrong.|
|FIGURE 1: US DOLLAR, DAILY. With the yellow lines, you can see in the price pane that prices were moving up steadily, but the line in the RSI pane was flat.|
|Graphic provided by: Wealth-lab.|
|It is also interesting to note that the dollar index is only about a point away from overhead resistance in the form of a descending 61.8% Fibonacci fanline (not shown). Two previous Fibonacci fan levels at 38.2% and 50% are shown in blue. Note the price action at each level, which would indicate that prices are affected by the fan lines to at least a minimal degree.|
|Combine the RSI divergence with the approach of the Fibonacci fanline and it is a clear warning that prices might move downward in at least the near term.|
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