An annual report is available for most publicly traded companies that will outline some specific data about that company for the previous twelve month period. For example, an annual report will include the market risk for that particular stock. Market risk is simply a numeric evaluation of the likelihood that the stock value will fluctuate because of changes in the market. Commodity risk (the chance that commodity prices will change) and currency risk (the chance that foreign currency exchange rates will change) are two of the more common risk factors detailed on an annual stock report.
The Securities Exchange Commission dictates much of the information on annual stock reports - including risk factors - to ensure that potential buyers have the data they need to make informed decisions. Remember that the term "stock market" doesn't describe an all-inclusive sector of those buying, selling and trading stocks.
In actuality, there are several stock exchange markets and some stocks aren't traded on any exchange. With that in mind, beware of anyone who wants to provide a comprehensive stock market report.