rsindex - Relative Strength Index (RSI) (2024)

Relative Strength Index (RSI)

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Syntax

index = rsindex(Data)

index = rsindex(___,Name,Value)

Description

index = rsindex(Data) calculates the Relative Strength Index (RSI) from the series of closing stock prices.

example

index = rsindex(___,Name,Value) adds optional name-value pair arguments.

example

Examples

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Calculate the Relative Strength Index for a Data Series for a Stock

Load the file SimulatedStock.mat, which provides a timetable (TMW) for financial data for TMW stock.

load SimulatedStock.matindex = rsindex(TMW);plot(index.Time,index.RelativeStrengthIndex)title('Relative Strength Index for TMW')

rsindex - Relative Strength Index (RSI) (1)

Input Arguments

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DataData with closing prices
matrix | table | timetable

Data with closing prices, specified as a matrix, table, or timetable. For matrix input, Data is M-by-1 with closing prices. Timetables and tables with M rows must contain a variable named 'Close' (case insensitive).

Data Types: double | table | timetable

Name-Value Arguments

Specify optional pairs of arguments as Name1=Value1,...,NameN=ValueN, where Name is the argument name and Value is the corresponding value. Name-value arguments must appear after other arguments, but the order of the pairs does not matter.

Before R2021a, use commas to separate each name and value, and enclose Name in quotes.

Example: index = rsindex(TMW,'WindowSize',10)

WindowSizeMoving window size for relative strength index
14 (default) | positive integer

Moving window size for relative strength index, specified as the comma-separated pair consisting of 'WindowSize' and a scalar positive integer.

Data Types: double

Output Arguments

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index — Relative strength index
matrix | table | timetable

Relative strength index, returned with the same number of rows (M) and the same type (matrix, table, or timetable) as the input Data.

More About

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Relative Strength Index

Relative strength index is calculated by dividing the average of the gains by the average of the losses within a specified period.

RS = (average gains) / (average losses)

References

[1] Murphy, John J. Technical Analysis of the Futures Market. New York Institute of Finance, 1986, pp. 295–302.

Version History

Introduced before R2006a

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fints object support for the Data input argument is removed.

The Data input accepts negative prices.

MATLAB Command

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Run the command by entering it in the MATLAB Command Window. Web browsers do not support MATLAB commands.

rsindex - Relative Strength Index (RSI) (2)

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rsindex - Relative Strength Index (RSI) (2024)

FAQs

Rsindex - Relative Strength Index (RSI)? ›

The relative strength index (RSI) is a technical indicator used in the analysis of financial markets. It is intended to chart the current and historical strength or weakness of a stock or market based on the closing prices of a recent trading period. The indicator should not be confused with relative strength.

What is the difference between relative strength index and RSI? ›

The difference between relative strength and RSI is essentially a difference of perspective. The relative strength tells about the value of a stock in comparison to another stock, index or benchmark, while the RSI tells about the performance of a stock in comparison to the recent performance of the same stock.

What does the RSI indicator tell you? ›

The Relative Strength Index (RSI), developed by J. Welles Wilder, is a momentum oscillator that measures the speed and change of price movements. The RSI oscillates between zero and 100. Traditionally the RSI is considered overbought when above 70 and oversold when below 30.

What is RSI 14 relative strength index? ›

The Relative Strength Index (14) – RSI is a momentum indicator that measures the magnitude of recent price changes to analyze overbought or oversold conditions. RSI (14) uses 14 periods to calculate values.

What is a good RSI strength? ›

The basic idea behind the RSI is to measure how quickly traders are bidding the price of the security up or down. The RSI plots this result on a scale of 0 to 100. Readings below 30 generally indicate that the stock is oversold, while readings above 70 indicate that it is overbought.

What indicator is better than RSI? ›

RSI and MACD are two valuable instruments for technical traders. The RSI is particularly effective in identifying instances where the market is either overbought or oversold in range-bound conditions. The MACD, on the opther hand, is most useful in trending markets as it highlights changes in momentum and trends.

Why is RSI a bad indicator? ›

This means it reacts to past price movements rather than predicting future ones. This inherent lag can sometimes mislead traders, particularly when the markets are volatile or trade in a strong bullish/bearish trend. In this article, we will discuss the situations when RSI indicator will lie to you.

Should you buy when RSI is high or low? ›

Investors using RSI generally stick to a couple of simple rules. First, low RSI levels, typically below 30 (red line), indicate oversold conditions—generating a potential buy signal. Conversely, high RSI levels, typically above 70 (green line), indicate overbought conditions—generating a potential sell signal.

How to use relative strength index? ›

First, identify a previous time period to use. A time period is generally 14 days, but can be shorter or longer. Next, add up the average gains and divide by the average losses during your chosen time period. The calculation's solution, or value, is referred to as relative strength.

What is a good number for the RSI indicator? ›

What Is a Good RSI Indicator? Traders who are looking for investment opportunities should look for RSI values that hit 30 or fall below that level. This allows them to look for investment options that may be undervalued where the price may increase in the future.

How to use RSI for day trading? ›

RSI Day Trading Strategy

You can use the RSI indicator in day trading using its default time period set at 14 periods. This helps swing traders place multiple orders in a single trading day and profit from the same. However, you can also use different time period settings if the 14 period setting is not suitable.

What is relative strength index RSI in Tradingview? ›

Relative Strength Index (RSI) is a momentum indicator. It shows overbought and oversold condition of a security or a index. Its interpretation is: 40 (oversold) and 60 (overbought) . In above weekly chart of Union Bank of India, you can see at encircled point it was in oversold zone in June 2022 and then it moved up.

How to read the RSI indicator? ›

In general, a relative strength index tells investors that:
  1. A reading below 30 is viewed as a bullish indicator.
  2. A reading above 70 is viewed as a bearish indicator.
  3. A reading of 80 and above is a strong indicator of an overbought condition.
  4. A reading of 20 and below is a strong indicator of an oversold condition.
Nov 23, 2023

What are two exercises that can improve your reactive strength index? ›

Typical exercises to improve RSI are: jumps and bounces, plyometrics, countermovement jumps, speed ladders, mini hurdle drills, reverse box jumps, rebound box jumps etc.

What is the difference between MACD and RSI? ›

While both are considered momentum indicators, the MACD measures the relationship between two EMAs, while the RSI measures price change in relation to recent price highs and lows. These two indicators are often used together to provide analysts a more complete technical picture of a market.

What is the difference between ROC and RSI indicator? ›

However, ROC signals divergences with just a visible difference between swing highs and lows. It requires you to spot the divergence visually on the chart. RSI also highlights divergences, but it clearly shows when it is in overbought or oversold territory based on its 0-100 scale.

What is the difference between RSI and R? ›

The two thermal resistance values you'll encounter are the RSI and R-Value. The R-Value is an imperial system unit of measurement (ft2·°F·h/BTU) and the RSI Value is a metric system unit of measurement (m2·K/W). The higher the resistance value, the slower the rate of heat transfer through the insulating material.

Is RS rating the same as RSI? ›

Friends, both these indicators are very useful in understanding markets - while RS is a technical indicator that is useful for comparing and selecting the right stocks, RSI can help you understand the subtleties of price movements if done right.

What is the difference between RSI and TSI? ›

Relative Strength Index (RSI)

While both RSI and TSI identify overbought and oversold conditions, the TSI's double smoothing process helps to reduce noise and provide more accurate signals.

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