The trading hours of US stocks are from 9: 30am to 4: 00pm EST. Unlike A-shares, U.S. stocks continued trading during the lunch break. Calculated by Beijing time, it is: 265438+ 0:30-4:00 pm. Because there is daylight saving time in the United States, the trading time in winter is one hour later than that in summer, and it is 22:00-5:00 in China. NYSE New York Stock Exchange (NYSE), also known as new york Stock Exchange (NYSE), is the exchange with the largest total market value of listed companies (2009 data), the largest number and market value of IPOs (2009 data) and the second largest trading volume (2008 data). At the end of April 2005, NYSE acquired all-electronic stock exchanges (islands) and became a profit-making institution. New york Stock Exchange is headquartered at Broadway 18, new york, NY, USA, on the south side of the corner of Wall Street. On June 1 2006, new york Stock Exchange announced its merger with Euronext to form new york Stock Exchange-Euronext. NASDAQ NASDAQ, also known as the NASDAQ stock market, is known as the National Association of Securities Dealers for Automatic Quotation (NASDAQ), which is an invisible market based on electronic networks. There are about 5,400 companies listed in this market, which is the securities market with the largest number of listed companies and the largest stock trading volume in the United States. 1968, the National Association of Securities Dealers (NASD for short) decided to create an "automatic quotation system of the National Association of Securities Dealers" to solve the problem of OTC market segmentation. 197 1, the trading system was officially launched. NASD connects the trading terminals and data centers of more than 500 market makers to form a data exchange network, selects more than 2,500 stocks with the best scale, performance and growth from the OTC market, and requires market makers to list their stock quotations in the system for investors' reference. 1975, NASD put forward the listing standard, which completely cut off the contact with other OTC stocks and became a completely independent listing place. In 2000, Nasdaq issued shares through private placement, and began trading in the OTC market in 2002. In February 2005, Nasdaq went public in its own market. In May 2007, NASDAQ acquired OMX, a Nordic stock market, for $3.7 billion, and jointly established a transatlantic trading platform. The new company is named NASDAQ OMX Group, with a total market value of 7 1 billion dollars, of which NASDAQ holds 72% shares and OMX shareholders hold 28% shares.