so that you do not lose money. if you buy a stock that is about to crash and you do not know that then there is a big chance that you will lose money.
risk
I don't advise buying stocks online without a broker, but if you're intent on it, you need to evaluate how much risk you want to take and carefully research the companies you wish to invest in.
Buying and selling is a very broad topic that likely refers to buying and selling stocks. One can learn about buying and selling stocks from many sources including Investopedia and About - Stocks.
gold has never been worth $0. some stocks have.
Buying stocks online may incur a small stockbroking fee as some companies charge for the buying/selling and trading of stocks. But there are some companies that do not charge for these services.
The main advantage to buying penny stocks is that they are so cheap. One also has to consider the downside. The major disadvantage to penny stocks is that these stocks often fail.
Penny stock tend to be high risk stocks. The simple cautious steps can prevent losses and may even give good profit. You have to check history of the company and the board of directors. The company's turn over figures can give you goo idea. Before trading any stocks you must learn to read graphs.
It is when there is money left over from buying and selling stocks. You should get a payout from the company if they made money that year. A certain percentage of their money goes to the stockholders.
To find tips and tricks on buying and selling stocks, one should visit sites such as Bloomberg. Alternatively, one could try the official London Stock Exchange webpage, for example.
with mostly borrowed money
Some tips for buying and selling stock, are simple ones. You should buy low and sell high. Watch out for less known stocks in investing. Don't get upset if money is lost, sometimes you lose.
One can start buying direct stocks by using the company's direct stock purchase plan. With this plan, it will enable stocks to be directly purchased from the company.