EVERYTHING ABOUT FOREX
The relative strength index (RSI), one of the most frequently used momentum indicators, was developed by J. Welles Wilder in 1978. The RSI helps to measure the strength of a security's recent up moves compared to the strength of its recent down moves in a specific period of time. Since it is used to signal overbought and oversold conditions RSI helps traders to identify market direction and upcoming corrections.
The formula to calculate the RSI is as follows:
RSI= 100 - (100/(1+RS))
RS= AUn / ADn
AUn = average of the closing prices of up days
ADn = Average of closing prices of down days
RSI also give strong signals during the period of sideways.
HOW THE RSI IS USED
RSI always ranges between 0% and 100%. This technical indicator generates such signals as crossovers and divergence and indicates overbought and oversold conditions at the market. Optimal level for sell operations is 75, for buy operations - 25.
In the RSI, the overbought line is usually set at 75% and when the RSI is above this level the security is considered to be overbought. The security is seen as oversold when the RSI is below 25%. The relative strength index (RSI) is most commonly used for finding divergences. There are two types of divergence, bearish and bullish. Bullish RSI Divergence - when price makes a new low but RSI makes a higher low. Bearish RSI Divergence – When price makes a new high but RSI makes a lower high. This means that selling opportunity has weakened.
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