RSI stands for the Relative Strength Index. The Relative Strength Index was developed by J. Welles Wilder. It measures the change and speed of price movements between 0 and 100. Over 70 is usually considered “overbought” and under 30 is usually considered “oversold”.

What is a good RSI to buy?

Generally speaking, if the RSI is below 30, then you can be relatively confident that the shares will rise from the current prices, thus you should buy. On the contrary, if it is over 70, you should sell.

What happens when RSI is overbought?

Nothing necessarily, however it does tend to cause a downward move as many will begin to sell.


What does RSI mean?

RSI stands for Relative Strength Index.

What is a good RSI to buy?

Studies of RSI have shown that 70 or more suggest that a security is becoming overbought or overvalued and may be primed for a trend reversal or corrective price pullback. An RSI of 30 or less indicates an oversold or undervalued condition.

How useful is RSI?

The RSI can signal when a stockholder will sell in a high-demand market scenario. Conversely, a security becomes oversold when its demand reduces, possibly after the public image of the underlying company gets tarred or if economic or industry trends derail a company’s financial performance.

What is the best period for RSI?

The best period is between 2 to 6.

How do I check my RSI signal?

Moving Average Crossovers. You can use moving average crossovers to verify RSI indications that a market is overbought or oversold. RSI is usually used to indicate early sign of possible trend changes. Consequently, it’s helpful to add exponential moving averages (EMAs) that respond more quickly to recent price changes.

How do you confirm RSI divergence?

In a situation where the prices are making a higher high and the indicator is making lower highs, it indicates bearish divergence in RSI. Also, when the prices are making lower low and the indicator is making higher lows, it indicates bullish divergence in RSI.

Further Reading

  • Technical analysis and the London stock exchange: testing the MACD and RSI rules using the FT30 – [PDF]
  • Technical analysis and the Spanish stock exchange: testing the RSI, MACD, momentum and stochastic rules using Spanish market companies – [PDF]
  • A comparison of MA and RSI returns with exchange rate intervention – [PDF]
  • CAST: Using neural networks to improve trading systems based on technical analysis by means of the RSI financial indicator – [PDF]
  • Revisiting the Performance of MACD and RSI Oscillators – [PDF]
  • Technical analysis and National Stock Exchange of India: testing the RSI rule using CNX Nifty index – [PDF]
  • The Viability of Six Popular Technical Analysis Trading Rules in Determining Effective Buy and Sell Signals:: MACD, AROON, RSI, SO, OBV, and ADL – [PDF]