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Finance Dictionary and Glossary of Investment Terms
Relative strength
Definition 1.
Movement of a stock price over the past year as compared to a market index (like the S&P 500). A value below 1.0 means the stock shows relative weakness in price movement (underperformed the market); a value above 1.0 means the stock shows relative strength over the one-year period. Equation for Relative Strength: [current stock price/year-ago stock price] divided by [current S&P 500/year-ago S&P 500]. Note this can be a misleading indicator of performance because it does not take risk into account.
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Definition 2.
A stock's price change over a period of time relative to that of a market index, such as the S&P 500. The relative strength of a stock is calculated by taking the percentage price change of a stock over a set period of time and ranking it on a scale of 1 to 100 against all other stocks on the market, with 1 being worst and 100 being best. For example, a stock with a relative strength of 90 has experienced a greater increase in its price over the last year than the price increases experienced by 90% of all other stocks on the market. Some technical analysts, especially momentum investors, like stocks with high relative strength rankings, believing that stocks which have recently gone up are more likely to continue going up. Other technical analysts believe that a very high relative strength can be an indication that the stock is overbought and is ready to fall. Relative strength is really a "rear view mirror" metric, measuring only how the stock has done in the past, not how it will do in the future.
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Definition 3.
Measures the price performance of a stock in comparison to all other stocks. Many analysts believe that stocks with strong and improving relative strength tend to continue to outperform all other stocks, all other things being equal.The figure is obtained by calculating the percent price change of a stock over a particular time period and ranking it against all other stocks on a scale of 1 to 100, with 100 being best. Stocks that are ranked from 70 to 100 are considered to have good relative strength, while stocks ranked less than 50 are considered to have poor relative strength.
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Definition 4.
A measure of price trend that indicates how a stock is performing relative to other stocks in its industry.
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