There are a lot of great stock market information sites on the Internet, many of them are free and have great tools to use. Of all the free sites, the one I use when I am doing serious stock research is Yahoo Finance. The reason I prefer Yahoo, over Bloomberg, CNBC, MSN money etc... is the extensive set of analysis tools they provide without charge.

This is in no way comprehensive of all the tools available; a whole book could be written about all the different tools available on Yahoo Finance. I am only going to cover the some of the best tools on a specific stock that you have discovered through either the Yahoo stock screener or some other stock screening tool, or tip. 

Historical Pricing

Yahoo Finance has an extensive database of historical prices for nearly every stock traded. You can look at daily and monthly prices (open/close high/low) going back to the 1970‘s and possibly farther back on some stocks. And those prices can be exported for making models, and charting historical trends. You can also filter the historical pricing to only include dividends, and stock splits. The amount of data available is unbelievable. 


When you go into the companies profile, you can see the company provided description of itself, along with the top executives, the address for the firm, and some basic salary numbers for the executives. You can also click on a sub-menu and find the companies that are peers, and their approximate P/E ratios and market capitalization for comparisons of how the company you selected compares to its peers. 


Knowing who own the shares of your target stock can be very valuable data. It can show if their is institutional interest in the stock, and how much, and you can also see if the executives are vested in the companies future by holding large quantities of the company they control. In a sub-menu you can also see the insider transactions, and see if there is a good trend in buying/selling by the executives. 


Charts are one of the best feature of the entire set of stock analysis tools on Yahoo Finance. You can view trends for as long as many of the companies have been in business. The daily detail will show you when the most volume occurred, and what the sizes of shares traded at thousands of points in time for each stock. You can also filter the stocks based on your technical style and preferences. You can also bring up specific days, weeks, months to see trends that occurred during the time frame chosen. You will be impressed by the charting capabilities of the site! 


Before investing in any company a look at the financials should be mandatory. It can tell you so much about the health of the company. Yahoo keeps track of all of the last three years of financials of thousands of companies. You can also go to a quarterly view if you don’t want to only see the annual trends. The financials include the cash flow, balance sheets, and income statements. This is where I start my research, and Yahoo makes it so much more convenient than looking it up in the SEC database.

This was just a start to describing all the fantastic features available on Yahoo Finance. There is so much more, and new items being added all the time. I read all the major sites, and they each have their specialties, but when it comes down to time for me to pick out stocks and do investing research that is where I go.