Monday to Friday, 4:00 AM to 8:00 PM (Eastern Time)

• Pre-market: 4:00 AM to 9:30 AM
• Regular trading: 9:30 AM to 4:00 PM
• After-hours trading: 4:00 PM to 8:00 PM

Monday to Friday, 6:00 AM to 5:00 PM (Eastern Time)

The NYSE is the largest stock exchange in the United States. Nearly 2,800 listed companies trade here, with a global market capitalization of $15 trillion. Investors can trade in two ways: by placing orders through brokers who contact stock traders, or by executing trades through their own floor managers on the trading floor. Small trades are often executed automatically online, while large trades often involve communication and judgment and are more likely to be executed by floor traders.

1. NYSE
   • The NYSE is a physical exchange where transactions are made through specialists and brokers.
   • Stocks listed on the NYSE typically have larger market capitalizations, including many blue-chip stocks.
2. AMEX
   • Similar to the NYSE, the AMEX is a physical exchange where transactions are made through specialists and brokers.
   • However, stocks listed on the AMEX generally have smaller market capitalizations, similar to the growth enterprise market in domestic exchanges.
3. Nasdaq
   • Nasdaq is a non-physical exchange that conducts transactions through an integrated system, with a focus on technology and growth stocks.
4. OTCBB
   • The OTCBB is an over-the-counter market in the U.S. Companies in this market are not "listed" but "quoted."
   • Quoted companies must disclose information to the SEC, but due to their generally lower quality, trading is less active.

• The Nasdaq (National Association of Securities Dealers Automated Quotations System) is the largest and most active stock market, with nearly 4,400 stocks quoted.
• To be quoted on the Nasdaq National Market, a company must meet strict criteria in terms of financials, capitalization, and corporate governance.
• Some of the world's largest and most well-known companies are traded on the Nasdaq National Market.

• The AMEX, previously the second-largest stock exchange in the U.S., is now the third-largest and is located near Wall Street in New York.
• The AMEX operates similarly to the NYSE but is unique in being the only exchange that trades stocks, options, and derivatives.
• It focuses on small- and mid-cap companies, offering a range of services to increase their visibility.
• The AMEX forms strategic partnerships with small- and mid-cap companies to enhance their management and shareholder value, ensuring a fair and orderly trading environment.

• The OTC market, also known as the off-exchange market or "pink sheets," is entirely different from the exchange market.
• It does not have a fixed location, membership requirements, strict rules, specified trading products, or restrictions. Transactions are mainly conducted through private negotiations between counterparties.
• Prominent OTC markets worldwide include the OTCBB, Pink Sheets in the U.S., AIM in the UK, CMF and New Market in France, the Korean OTC market, and China's interbank bond market.
• The U.S. has a vast OTC market, with securities traded in these markets accounting for about three-quarters of the total U.S. securities trading volume.