over leveraged.
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or perhaps madness!!
This is called Margin Loan or Margin Buying. Attention! Please don't just put smiley faces, it's annoying when someone needs the answer!
ETFs is an abbreviation for Exchange Trade Funds. This has nothing to do with home mortgages or loans. This is something that has to do with the buying and selling of stocks.
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.
with mostly borrowed money
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.
margin
buying on margin
NASDAQ
You invest in hsbc banking by buying stocks from them. Buying stocks involves paying your own money, or switching from other stocks you own already that have enough money to cover the price.