Of course, if you really want to get a sense of a company's value and growth potential, you'll need to look at some numbers. You can start by reviewing its balance sheet, which lists its various assets and liabilities. You can access public companies' balance sheets on the SEC's EDGAR website. Similarly, you can look at a company's cash flow statement to get a sense of how it manages its money, and its income statement to get a sense of its profits and losses.
The truth of the matter is that the stock market has always been more volatile than the bond market. It's also, however, historically delivered much stronger returns. Between 1928 and 2010, stocks averaged an 11.3% return, while bonds averaged just 5.28%. So let's say you have $10,000 to invest over a 30-year period, and you put it in bonds averaging 5.28%. After three decades, you'll have about $47,000. But if you were to put that same amount of money in stocks instead and score an average 11.3% return, you'd be sitting on $248,000 after 30 years.
Learn basic investing terms: Whether you plan to manage your investments on your own or want help from an advisor, stock market news can be mind-boggling. If you’re working with a financial advisor, don’t be afraid to ask questions about how the financial markets and your portfolio are working. If you’re reading up on stock market news, look up terms you come across and commit them to memory.
You can set up an account by depositing cash or stocks in a brokerage account. Firms like Charles Schwab and Citigroup’s Smith Barney unit offer brokerage accounts that can be managed online or with a broker in person. If you prefer buying and selling stocks online, you can use sites like E-Trade or Ameritrade. Those are just two of the most well-known electronic brokerages, but many large firms have online options as well.
Stock mutual funds or exchange-traded funds. These mutual funds let you purchase small pieces of many different stocks in a single transaction. Index funds and ETFs are a kind of mutual fund that track an index; for example, a Standard & Poor’s 500 fund replicates that index by buying the stock of the companies in it. When you invest in a fund, you also own small pieces of each of those companies. You can put several funds together to build a diversified portfolio. Note that stock mutual funds are also sometimes called equity mutual funds.
Invest for the long run.  Choosing good-quality investments can take time and effort. Not everyone can do the research and keep up with the dynamics of all the companies being considered. Many people instead employ a "buy and hold" approach of weathering the storms rather than attempting to predict and avoid market downturns. This approach works for most in the long term but requires patience and discipline. There are some, however, who choose to try their hand at being a day-trader, which involves holding stocks for a very short time (hours, even minutes). Doing so, however, does not often lead to success over the long term for the following reasons:
Discretionary accounts -- This account allows another person to buy or sell stock on your behalf without telling you. These are commonly used by people who hire a registered investment advisor (RIA) to manage their portfolio for them. Self-directed investors have no need for a discretionary account. It’s only useful if you hire someone else to manage your portfolio for you.
Commodities are goods such as metals and grains that are traded through futures contracts. A futures contract is an agreement to buy or sell a specific quantity of a commodity at a specified price on a specified date in the future. Commodities trading is vulnerable to fraud, so be sure to check that the individual and firm you are investing with are registered.
Worth noting: A 401(k) is a type of investment account, and if you’re participating in one, you may already be invested in stocks, likely through mutual funds. However, a 401(k) won’t offer you access to individual stocks, and your choice in mutual funds will likely be quite limited. Employer matching dollars make it worth contributing despite a limited investment selection, but once you’re contributing enough to earn that match, you can consider investing through other accounts.
Your asset allocation should vary based on your stage of life. For example, you might have a much higher percentage of your investment portfolio in stocks when you are younger. Also, if you have a stable, well-paying career, your job is like a bond: you can depend on it for steady, long-term income. This allows you to allocate more of your portfolio to stocks. Conversely, if you have a "stock-like" job with unpredictable income such as investment broker or stock trader, you should allocate less to stocks and more to the stability of bonds. While stocks allow your portfolio to grow faster, they also pose more risks. As you get older, you can transition into more stable investments, such as bonds. 
These extra fees are another big cost to investors, but they aren’t deducted from your account balance. Instead, these fees show up in the price on the ticker tape. That’s why many high-priced mutual funds’ and ETFs’ value per share doesn’t seem to change over time — any growth is offset by fees. Also watch out for mutual funds that charge a front- or back-end load for each purchase or sale. These usually range from 0.5% to 1% and can add up quickly. Warren Buffett: Investment Advice & Strategy - #MentorMeWarren