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Abstract Technical analysis has always been a very popular research method for domestic investors in the field of investment finance, but the indicators are numerous and the use of different ways to make performance pay varies. This paper is for the technical analysis of indicators which are very easy to use, clear signal, and a stop-loss mechanism of the "SAR indicator" as a research indicator. However, the "SAR indicator" in the original design of Dr. Wilder Jr. only consider the "price, when" these two factors, but ignored the "quantity" is also the key to affecting the stock price is very important. And the SAR indicator in the stock price into the consolidation period will be a failure of the situation, too many invalid transactions in addition to facing a loss but also to bear too much transaction costs. This paper is to re-write the SAR indicators to amend, in addition to extending the original structure, the addition of new volume parameters, hope that the new parameters in the amendment, the indicators can be more efficient and can bring excess compensation. After the empirical results of the simulation transaction, it is found that the SAR index with the revised volume will have a better net profit or loss than the original SAR index, and it will be much better than the buying strategy. If you consider the number of transactions, then the obvious addition to the revised volume of SAR indicators than the prototype SAR indicators are nearly half of the number of transactions. If the consideration of transaction costs, then the prototype SAR indicators will be a loss of the situation, but the revised SAR indicators are still a good profit, it is clear that the Taiwan stock market through the volume correction SAR indicators can get excess compensation. Keywords: price relationship, technical analysis
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