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The main purpose of this study is to explore whether the technical analysis can be profitable and whether the stock price trend really appears to have a great relationship. The research target to Taiwan 50 component stocks as a validation object, since 2015 to 2019 50 stocks price as a research sample, and the stock price trend into long, short, and consolidation three groups, using MACD, KD, and RSI technical indicators as the analysis of the study. By changing the stock price trend, using the breakthrough signal of the three technical indicators to its 50 stocks as a trading strategy, calculating its stock return rate in the three kind of the trends with three technical indicators and making hypothetical checks, observing the effectiveness of the technical indicators in the stock price long, short, and consolidation trend.
The result of the study show that as the stock price trend appears, no matter what technical indicators are used, when the stock market is showing a long trend, then the return on buying stocks will be better than the short or consolidation trend; Therefore, simply by using technical indicators regardless of the stock price trend to implement trading strategy, the performance of the investment target is not ideal, but as long as stock price trend appears, and trading along the trend, regardless of the technical indicators used, the winning rate is as high as 80% or even close to 100%.
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