The Shenzhen Stock Exchange (SZSE) (Chinese: 深圳证券交易所) is one of the People's Republic of China's two stock exchanges, alongside the Shanghai Stock Exchange. It is based in Shenzhen, China. The market capitalization of its listed companies was about US$ 1 trillion in 2011.

Many of the companies within this market are subsidiaries of companies in which the Chinese government maintains controlling interest.

The exchange has pre-market sessions from 09:15am to 09:25am and normal trading sessions from 09:30am to 11:30am and 1:00pm to 3:00pm China Standard Time (UTC+8) on all days of the week except Saturdays, Sundays and holidays declared by the Exchange in advance.

The exchange opened the ChiNext (创业板) board, a NASDAQ-type exchange for high-growth, high-tech start-ups, on October 23, 2009.

(As of July 2008)

Many Chinese companies are listed on this exchange.

Shenzhen (Mandarin pronunciation: [ʂə́ntʂə̂n]) is a major city in the south of Southern China's Guangdong Province, situated immediately north of Hong Kong. The area became China's first—and one of the most successful—Special Economic Zones (SEZs). It currently also holds sub-provincial administrative status, with powers slightly less than a province.

Shenzhen's modern cityscape is the result of the vibrant economy made possible by rapid foreign investment since the institution of the policy of "reform and opening" establishment of the SEZ in the late 1979, before which it was only a small village. Both Chinese and foreign nationals have invested enormous amount of money in the Shenzhen SEZ. More than US$30 billion in foreign investment has gone into both foreign-owned and joint ventures, at first mainly in manufacturing but more recently in the service industries as well. Shenzhen is now reputedly considered as one of the fastest-growing cities in the world.

Being southern mainland China's major financial centre, Shenzhen is home to the Shenzhen Stock Exchange as well as the headquarters of numerous high-tech companies. Shenzhen is also the third-busiest container port in China, after Shanghai and Hong Kong.

A stock exchange is a form of exchange which provides services for stock brokers and traders to trade stocks, bonds, and other securities. Stock exchanges also provide facilities for issue and redemption of securities and other financial instruments, and capital events including the payment of income and dividends. Securities traded on a stock exchange include shares issued by companies, unit trusts, derivatives, pooled investment products and bonds.

To be able to trade a security on a certain stock exchange, it must be listed there. Usually, there is a central location at least for record keeping, but trade is increasingly less linked to such a physical place, as modern markets are electronic networks, which gives them advantages of increased speed and reduced cost of transactions. Trade on an exchange is by members only.

The initial offering of stocks and bonds to investors is by definition done in the primary market and subsequent trading is done in the secondary market. A stock exchange is often the most important component of a stock market. Supply and demand in stock markets are driven by various factors that, as in all free markets, affect the price of stocks (see stock valuation).