1.金融類股股價與成交量於週轉率達2.5374時產生結構性變化，當金融類股之個股成交量週轉率低迷時，價量關係呈現負相關；而當個股週轉率活絡時，市場將轉為價量齊揚。 2.電子類股股價報酬率與成交量於週轉率達0.9748時產生結構性變化，當電子類股之個股成交量週轉率低迷時，價量關係呈現負相關，而當個股週轉率活絡時，市場將轉為價量齊揚。 3.電子與金融類股，週轉率與報酬率間存在著非線性關係。 4.電子與金融類股，當週轉率偏低時，週轉率與報酬率是呈現負相關；而當週轉率提高後，週轉率與報酬率則轉為正相關。 In the technical method, we can see that the volume often goes before the stock price, and investors may understand why the stock price goes up and down by observing the changes in volume. According to the relevant empirical studies, the relation between the volume and the price can be three types：1. the volume and the price go up at the same time 2. the price goes down while the volume decreases 3. the volume departures from the price, but there were not many studies about the price volatility among industries. So here we take the electronic and the financial stock from the Taiwan 50 Index as examples, and use the stock price, volume and volume turnover rate as variables to discuss the relation between the volume and the price in different industries, also to observe the incremental changes between the volume and the price volatility so that can provide investors to predict the stock price from the historical empirical studies of the relation between the volume and the price. The main empirical finding as below：
1.The financial stock price and the volume have structural changes when the turnover rate is 2.5374. When the financial stock volume is staying low, there is a negative correlation between the volume and the price；and when the turnover rate become adjustable, the volume and the price will go up at the same time in the stock market. 2.The electronic stock price and the volume have structural changes when the turnover rate is 0.9748. When the electronic stock volume is staying low, there is a negative correlation between the volume and the price；and when the turnover rate become adjustable, the volume and the price will go up at the same time in the stock market. 3.There is a non-linear relationship between the turnover rate and the return among the financial and the electronic stock. 4.Among the financial and the electronic stock, when the turnover rate is low, it is negatively related to the return；and when the turnover rate raises, it becomes positively related to the return.
