1. New York Stock Exchange (NYSE)
New York Stock Exchange is the second largest securities exchange in the world. Approximately 2,800 companies are listed on NYSE, which means their stocks are traded on NYSE. The total market value tops $15 trillion.
2. NASDAQ Stock Market (NASDAQ)
NASDAQ Stock Market is a stock market largely based on an electronic network. Approximately 5400 companies are listed and their stocks trade on NASDAQ. It is the U.S. stock market with the most listed companies and largest trading volume. NASDAQ is also the biggest online trading exchange in the U.S.
3. American Stock Exchange (AMEX)
American Stock Exchange is currently the third largest stock exchange in the U.S. AMEX is the only stock exchange where stocks, options, and derivatives can be traded simultaneously. AMEX is the only stock exchange that caters to companies with medium to low market value and provides them with a spectrum of services aimed at raising their market profile.
4. Pink Sheet Exchange (PK)
Pink sheet trading has been incorporated into the bottom level of NASDAQ's stock quotation system. Pink sheets are a lower level form of quotation within the U.S. over the counter trading market.
5. Over The Counter Trading Markets (OTC)
OTC is a market conducted directly between dealers and principals via trading platforms other than exchanges. In other words, it is a spread-out trading network outside of the central location of an exchange. Unlike an exchange there is no automatic disclosure of the price of deals to other market participants, and deals and traded instruments are not standardized. In a generalized sense, OTC markets include NASDAQ, OTCBB (Over The Counter Bulletin Board) and PK. NASDAQ has the highest level of requirements for OTC securities to be traded, followed by OTCBB, while PK has lowest requirements.