Forex BasicsRelative Strength Index
by: martinchandra
status: Old Pro
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Word Count: 439
Relative strength Index (RSI) is measured on a scale from 0-100 with a reading above 70 being overbought and a reading below 30 being oversold. Originally he recommended a 14-day period as the setting but many other time periods have now become popular. Wilder discusses 5 uses of RSI in his book.
Tops and Bottoms
These are indicated when the readings go above 70 (top) and below 30 (bottom)
Chart Formations
The RSI may form chart formations that may or may not appear on the actual bar chart e.g. you might see a head and shoulders formation on the RSI but not on the bar chart.
Failure Swings
When the RSI goes above 70 or below 30 this is a strong indication that the market is ready for a reversal.
Support and Resistance
It is sometimes more apparent that support or resistance is forming in the RSI than can be seen on the bar chart.
Divergence
When price makes a new high or low and this is not confirmed by the RSI this can be a very strong indication that a reversal is imminent.
My own favorite use of RSI is that of divergence. When the security you are trading makes a new high and the RSI turns down that is bearish divergence. The same is true of bullish divergence. When price makes a new low and the RSI turns up that is bullish divergence.
I also prefer to see divergence at major tops and bottoms. That is to say, if we have been in an up trend for some time and I am already thinking this might be topping and I see divergence then I am a lot more confident that it has in fact topped and vice versa.
I like to use it in combination with other indicators to help build a picture. You will notice that in most cases of divergence the security makes a low as does the RSI, then the RSI begins to turn up but the security continues down. The same applies to highs.
Now the security makes a new low and the RSI does come down but not as low as the previous low and that is the point where action can be taken. The fact that the RSI has not dropped lower than its previous low and the price has, is the point of recognition.
BlueWaterArticles.com: - Forex BasicsRelative Strength Index
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