stock market

How do stock research analysts of the fluctuation of stocks for the future?

In today's world many companies are very secretive on relations exist, ie Murgas, Sell offs, etc. How and where the guys in the stock market to learn the goings-on before it actually happens?

There are sectors in the market whose shares are very expensive and whose market value is to appreciate that depreciate. Examples are the shares of banks and oil companies. So, it is generally easy to forecast the future market value of such shares. The prediction tool used is the analysis time series. Apart from that, the information of the past stock market is used to predict future market capitalization of companies