True Strength Index - TSI

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DEFINITION of 'True Strength Index - TSI'

A technical momentum indicator that helps traders determine overbought and oversold conditions of a security by incorporating the short-term purchasing momentum of the market with the lagging benefits of moving averages. Generally a 25-day exponential moving average (EMA) is applied to the difference between two share prices, and then a 13-day EMA is applied to the result, making the indicator more sensitive to prevailing market conditions. After the data is smoothed, some calculations are done to make the indicator fall in a range from +100 to -100, or from +1 to -1.

BREAKING DOWN 'True Strength Index - TSI'

A signal line (7-day EMA) is usually added - as it is to the moving average convergence divergence indicator - to help identify reversals. In addition, values of -25 and +25, like the levels of 30 and 70 used in the relative strength index, can also be used to identify levels where a security is overbought or oversold. The true strength indicator is a variation of the relative strength index.

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RELATED FAQS
  1. How are True Strength Index (TSI) patterns interpreted by analysts and traders?

    The true strength index (TSI) is a multifaceted technical indicator that can track trends and produce trading signals. Its ... Read Full Answer >>
  2. What assumptions are made when conducting a t-test?

    The common assumptions made when doing a t-test include those regarding the scale of measurement, random sampling, normality ... Read Full Answer >>
  3. How are double exponential moving averages applied in technical analysis?

    Double exponential moving averages (DEMAS) are commonly used in technical analysis like any other moving average indicator ... Read Full Answer >>
  4. How do you know where on the oscillator you should make a purchase or sale?

    Common oscillator readings to consider making a buy or sale are below 20 or above 80, respectively. More aggressive investors ... Read Full Answer >>
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