Stock chart are simply charts that show past prices or histories of a particular stock. They are elemental is helping an investor to decide where to place his investment, when to move it and when to diversify. This is really just a pattern of prices with the price movement plotted on the minute, hour and day in order to show by line or bar the happenings of that price movement thereby indentifying the trend.
Many websites are strong in the stock charting department most notable being stockcharts.com, finance.google.com, bigcharts.com and bestfreecharts.com. Any charting software you use will allow you to lengthen the timeframe of a stock in order to compare longer or shorter time periods. Chart settings can be looked at on a daily, weekly or monthly chart. Another way you can see if a stock is in an uptrend or downtrend is to add simple moving averages (SMA) to your chart. A moving average is a tool that takes the average stock price over a period of time and then plots it over the price chart.
Another easy way to analyze stocks is through pair trading or "statistical arbitrage" which simply means comparing related company/index stock charts. While the idea is simple, in all actuality, pair trading is the simultaneous selling and buying of two stocks when they don't follow a normal pattern. This trading strategy tries to catch two correlated stocks when they stretch out before returning to the average price.
It's important that the stocks chosen actually show the same pattern of movement, which is why it's good to utilize a stock comparison chart. Next is to make a price ration chart which can usually be done automatically and shows the characteristics of the stocks together. The ratio is then figured out by dividing one stock price from another.
With the abundance of affordable pairs trading analysis tools available, it's advisable to blend both the technical and fundamental approach when executing a trade. The blended approach makes it possible for traders on all levels from beginners to advanced to incorporate pairs trading into their daily trading strategy and by using free services such as SharpCharts at StockCharts.com, you can easily compare up to four different securities.