[Stock Tips] 1. What is RSI Indicator?

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What is Relative Strngth Index (RSI)?

RSI stands for Relative Strength Index, and it is a popular technical indicator used in financial markets to assess the strength and momentum of a price trend. The RSI is plotted on a scale of 0 to 100 and is typically used for identifying overbought and oversold conditions in an asset’s price.

Relative Strngth Index

The RSI is calculated based on the average gains and losses of an asset over a specified period, which is usually 14 periods (although this can be adjusted based on the trader’s preferences).

Formula for RSI

The formula for RSI is as follows: RSI = 100 – (100 / (1 + RS))


RS = (Average of N periods’ up closes) / (Average of N periods’ down closes)

Breakdown of how to interpret RSI

RSI 지표

RSI above 70: Overbought

This indicates that the asset’s price has been rising strongly, and there is a higher probability of a pullback or correction in the near future. It suggests that the asset may be overvalued, and traders might consider selling or taking profits.

RSI below 30: Oversold

This suggests that the asset’s price has been falling significantly and may be undervalued. Traders interpret this as a potential buying opportunity, as the price may rebound or reverse its downtrend soon.

When to buy and sell based on RSI

Buying Signal

Look for oversold conditions (RSI below 30) as potential buying opportunities.

However, avoid solely relying on RSI; it’s essential to use it in conjunction with other indicators or price patterns to confirm a potential trend reversal.

Selling Signal

Look for overbought conditions (RSI above 70) as potential selling opportunities.


It’s crucial to understand that RSI is just one tool among many in technical analysis, and it should not be used in isolation to make trading decisions. Markets can remain overbought or oversold for extended periods, and RSI signals might not always be accurate. Traders often combine RSI with other indicators, such as moving averages, MACD, or price patterns, to get a more comprehensive view of the market dynamics and make well-informed trading choices.

Additionally, keep in mind that trading and investing in financial markets involve risks, and past performance of an asset is not necessarily indicative of future results. Always practice risk management and consider seeking advice from a qualified financial advisor before making any trading or investment decisions.

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