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A
stock represents a share of ownership in a corporation.
A stock exchange
is an organization that provides a marketplace for either physical or
virtual trading shares, bonds and warrants and other financial products
where investors (represented by stock brokers)
may buy and sell shares of a wide range of companies.
A company will usually list its shares by
meeting and maintaining the listing requirements of a particular
stock exchange and the different. In the
United States, through the inter-market quotation system, stocks listed on
one exchange can also be bought or sold on several other exchanges,
including relatively new so-called ECNs (Electronic Communication Networks
like Archipelago or Instinet).
Stocks used to be broadly grouped into NYSE-listed and NASDAQ-listed
stocks. Until a few years ago there was a law in the USA that NYSE listed
stocks were not allowed to be listed on the NASDAQ or vice versa.
Many large foreign companies choose to list on a U.S. exchange as well as an
exchange in their home country in order to broaden their investor base.
These companies have then to ship a certain amount of shares to a bank in
the US (a certain percentage of their principal) and put it in the safe of
the bank. Then the bank where they deposited the shares can issue a certain
amount of so-called American Depositary Shares, short ADS (singular). If
someone buys now a certain amount of ADSs the bank where the shares are
deposited issues an American Depository Receipt (ADR) for the buyer of the
ADSs.
Likewise, many large U.S. companies list themselves at foreign exchanges to
raise capital abroad.
There are various
methods of buying and financing stocks. The most common means is through a
stock broker. Whether they are a full
service or discount broker, they arrange the transfer of stock from a seller
to a buyer. Most trades are actually done through brokers listed with a
stock exchange, such as the New York Stock Exchange.
There are many different stock brokers from which to choose, such as full
service brokers or discount brokers. The full service brokers usually charge
more per trade, but give investment advice or more personal service; the
discount brokers offer little or no investment advice but charge less for
trades. Another type of broker would be a bank or credit union that may have
a deal set up with either a full service or
discount stock broker.
There are other ways
of buying stock besides through a broker. One way is directly from the
company itself. If at least one share is owned, most companies will allow
the purchase of shares directly from the company through their investor
relations departments. However, the initial share of stock in the company
will have to be obtained through a regular stock broker. Another way to buy
stock in companies is through Direct Public Offerings which are usually sold
by the company itself. A direct public offering is an initial public
offering in which the stock is purchased directly from the company, usually
without the aid of brokers.
When it comes to financing a purchase of stocks there are two ways:
purchasing stock with money that is currently in the buyers ownership, or by
buying stock on margin. Buying stock on margin means buying stock with money
borrowed against the stocks in the same account. These stocks, or
collateral, guarantee that the buyer can repay the loan; otherwise, the
stockbroker has the right to sell the stock (collateral) to repay the
borrowed money. He can sell if the share price drops below the margin
requirement, at least 50% of the value of the stocks in the account. Buying
on margin works the same way as borrowing money to buy a car or a house,
using the car or house as collateral. Moreover, borrowing is not free; the
broker usually charges 8-10% interest.
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