True Strength Index: Best Settings for a Day Trading Strategy DTTW

true strength indicator
true strength indicator

True Strength Index is a very popular and widely used momentum oscillator that helps to determine the trend and overbought/oversold market conditions. William Blau developed the TSI indicator and in 1991, presented it in the Technical Analysis of Stocks & Commodities magazine. The true strength index indicator consists of two lines, the index line and the signal line. The signal line is actually the exponential moving average of the TSI.

This strategy is effective but not as much as the next trading strategy we are going to discuss. That’s what the indicator is all about and the mathematics behind it. It’s none other than the True Strength Index, shortly known as TSI.

True strength index calculations are not much complicated but do have a lengthy process. There are three stages of the TSI indicator’s calculations, double-smoothed price change, double-smoothed absolute price change, and the final TSI. Developed by John McGinley, McGinley Dynamic is a type of moving average that is considered to be a price smoothing and trend strength indicator. It was designed to track the market better than existing traditional SMA and EMA. Moreover, it shows a smoother, more responsive, moving average line. It has an automatic smoothing factor into its formula to adjust to market moves.

Signal line and the TSI line crossover

The TSI is provided as part of the standard collection of indicators offered by various trading platforms. The true strength index is a technical momentum oscillator used to identify trends and reversals. Developed by William Blau and introduced in Stocks & Commodities Magazine, the True Strength Index is a momentum oscillator based on a double smoothing of price changes.

  • There are three stages of the TSI indicator’s calculations, double-smoothed price change, double-smoothed absolute price change, and the final TSI.
  • When the TSI crosses above the signal line it can be used as a buy signal, and when it crosses below, a sell signal.
  • Therefore, expert traders and technical analysts advise using the true strength index indicator in conjunction with technical analysis tools to avoid false trading signals.
  • These types of crossovers are persistent and must be used to a certain extent, with caution.
  • If you want to use the True Strength Indicator, you should remember that the prices of stocks can go down as well as up, and never invest more than you can afford to lose.
  • Traders also get faster signals from the TSI indicator if they prefer to use shorter periods for the TSI but it increases the risks of whipsaws and unreliable signals.

The value of ROC changes according to the change of the current price with an earlier closing price. Inside the function, we are creating three empty lists in which the values will be appended while creating the trading strategy. The priority component of the indicator is the twice smoothed momentum. This allows you to remove unnecessary noise and can help to more clearly determine the price movement. If you want to use the True Strength Indicator, you should remember that the prices of stocks can go down as well as up, and never invest more than you can afford to lose. You should do your own research and use a variety of tools, rather than just one, for market analysis.

Thus, the True Strength Index is used not only to determine the trend movement, but also to find the extreme of a trend. Is a global cryptocurrency exchange platform that allows you to trade crypto and other assets. A good example of this is shown on the USD/CAD pair below. The blue lines show when a bullish crossover was made while the red arrows show where the bearish crossover happened. In this case, n is the number of periods or bars while TR is the True Range.

It is vital to use the TSI indicator in conjunction with other technical indicators and to evaluate the overall market context before making trading decisions. You will then want to do the same thing with the absolute price change. After that, divide the double smoothed price change by the double smoothed absolute price change and multiply that by 100 and you’ll end up with the True Strength Indicator. This chart combines the TSI with the double exponential moving averages. As you can the intersections of the TSI happen at almost the same time as the 7-day and 14-day moving averages.

The TSI is smoothing price changes to create a technical oscillator. The moving average convergence divergence indicator is measuring the separation between two moving averages. Both indicators are used in similar ways for trading purposes, yet they are not calculated the same and will provide different signals at different times. The True Strength Index belongs to the technical indicators giving a clue about the potential trend direction.

Prices are generally rising when TSI is positive and falling when TSI is negative. The example below shows Nike turning bullish in September 2011 as TSI moved into positive territory . The stock remained bullish as the uptrend extended into the spring of 2012.

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The Ultimate Oscillator is a technical indicator developed by Larry Williams to measure the price momentum of an asset across multiple timeframes. Mark extreme TSI levels, on the asset being traded, to see where overbought and oversold is. Being oversold doesn’t necessarily mean it is time to buy, and when an asset is overbought it doesn’t necessarily mean it is time to sell. Traders will typically watch for other signals to trigger a trade decision. For example, they may wait for the price or TSI to start dropping before selling in overbought territory.

This indicator uses functions to fetch data from other pairs so that the code is optimised and prevents slow loading. Here’s a screener including Symbol, Price, TSI, and 50 ema cross in a table output. As with the other momentum oscillators, the TSI should only be used in intraday when the price of an asset is trending. Using it when the price is moving sideways or consolidating is not ideal.

true strength indicator

In these cases, traders may decide to enter only in a long position when the indicator is projected as being above the centerline. If the indicator was valued below zero, however, the trader could then decide to only trade in short positions. In addition, breakouts and divergence are also used by traders using the True Strength Index indicator as a way to identify and determine price momentum shifts and general changes in price.

Long-term investors may prefer to use other technical indicators or fundamental analysis to identify stocks with strong long-term potential. To smooth price changes, TSI uses three parts, the double smoothed price change, the double smoothed true strength indicator absolute price change, and the TSI formula. Next, it calculates the previous output price change in 13-period EMA for double smoothing. Last, it calculates the TSI value by plugging the double-smoothed price change into the TSI formula.


Traders can also use the TSI indicator in combination with moving averages. When the TSI line crosses above a moving average, it is considered a buy signal, and when it crosses below a moving average, it is considered a sell signal. Another way to use the TSI indicator is to look for divergence between the price action and the TSI line. When the price is making higher highs, but the TSI line is making lower highs, it is considered a bearish divergence, and traders may consider selling. Conversely, when the price is making lower lows, but the TSI line is making higher lows, it is considered a bullish divergence, and traders may consider buying. The TSI indicator was developed by William Blau in the early 1990s.

What is the True Strength Indicator?

The momentum indicator can be used to generate trading signals or to find arguments about a market bias. A signal line crossover is one of the conditions that can be met to create trade signals based on the TSI technical indicator. The True Strength Index or TSI, is an exceptional indicator for trend trading. Alike the RSI, the indicator signalizes the oversold and overbought market conditions. The level of +25 points signalizes an overbought market, while the level of -25 points signalizes an oversold market. But please take into account that overbought and oversold conditions are not necessary signals of impending trend reversal.

The settings were chosen deliberately to get as similar entry and exit signals as possible. Relative strength index is set to usual 14 days and the True strength index was left to the previously used settings, i.e. 1-day momentum, 10-day longer EMA and 5-day shorter EMA. The TSI is displayed by a blue curve while the RSI is plotted by a violet curve. Now, let’s compare our returns with SPY ETF (an ETF designed to track the S&P 500 stock market index) returns.

One must also keep in mind that the overbought and oversold levels may be different depending on the assets that are being traded. I just want build a buy and sell strategy based on the true strength indicator. So whenever the “slow” line crosses the signal line upwards I want to buy and when the slow line crosses the signal line downwards i want to sell. Calculation of the exponential moving average of 13 periods based on the 25-period exponential moving average.