Tokyo Stock Exchange
|Key people||Taizo Nishimuro (Chairman)
Atsushi Saito (President/CEO)
Yasuo Tobiyama (MD/COO/CFO)
The Tokyo Stock Exchange (Tōkyō Shōken Torihikisho), or TSE, located in Tokyo, Japan, is the second largest stock exchange market in the world by market value, second only to the New York Stock Exchange. It currently lists 2,271 domestic companies and 31 foreign companies, with a total market capitalization of over 5 trillion USD. 
The TSE is incorporated as a kabushiki kaisha with nine directors, four auditors and eight executive officers. Its headquarters are located at 2-1 Nihombashi Kabutocho, Chūō-ku, Tokyo, Japan. Its operating hours are from 9:00 to 11:00 am, and from 12:30 to 3:00 pm. From April 24, 2006, the afternoon trading session started at its usual time of 12:30 p.m.
Stocks listed on the TSE are separated into the First Section (for large companies), the Second Section (for mid-sized companies), and the "Mothers" section (for high-growth startup companies). As of March 2006, there are 1,721 First Section companies, 489 Second Section companies and 156 Mothers companies.
The main indices tracking the TSE are the Nikkei 225 index of companies selected by the Nihon Keizai Shimbun (Japan's largest business newspaper), the TOPIX index based on the share prices of First Section companies, and the J30 index of large industrial companies maintained by Japan's major broadsheet newspapers.
89 domestic and 19 foreign securities companies participate in TSE trading. See: Members of the Tokyo Stock Exchange
Other TSE-related institutions include:
- The exchange's press club, called the Template:Nihongo, which meets on the third floor of the TSE building. Most Kabuto Club members are affiliated with the Nihon Keizai Shimbun, Kyodo News, Jiji Press, or business television broadcasters such as Bloomberg LP and CNBC. The Kabuto Club is generally busiest during April and May, when public companies release their annual accounts.
On 15th June 2007, the TSE paid $303 million to acquire a 4.99% stake in Singapore Exchange Ltd. 
The Tokyo Stock Exchange was established on May 15, 1878, as the Tokyo Kabushiki Torihikijo (東京株式取引所) under the direction of then-Finance Minister Okuma Shigenobu and capitalist advocate Shibusawa Eiichi. Trading began on June 1, 1878.
In 1943, the exchange was combined with ten other stock exchanges in major Japanese cities to form a single Template:Nihongo. The combined exchange was shut down and reorganized shortly after the bombing of Nagasaki.
The TSE runup from 1983 to 1990 was unprecedented, in 1990 it accounted for over 60% of the world's stock market capitalization (by far the world's largest) before falling precipitously in value and rankings today, but still remains one of the 3 largest exchanges in the world by market capitalization of listed shares.
The exchange was only able to operate for 90 minutes on November 1, 2005, due to bugs with a newly installed transactions system, developed by Fujitsu, which was supposed to help cope with higher trading volumes. The interruption in trading was the worst in the history of the exchange.  Trading was suspended for four-and-a-half hours.
During the initial public offering of J-Com on December 8, 2005, an employee at Mizuho Securities Co., Ltd. mistakenly typed an order to sell 610,000 shares at 1 yen, instead of an order to sell 1 share at 610,000 yen. Mizuho failed to catch the error; the Tokyo Stock Exchange initially blocked attempts to cancel the order, resulting in a net loss of 347 million US dollars to be shared between the exchange and Mizuho. Both companies are now trying to deal with their troubles: lack of error checking, lack of safeguards, lack of reliability, lack of transparency, lack of testing, loss of confidence, and loss of profits. On 11 December, the TSE acknowledged that its system was at fault in the Mizuho trade. On 21 December, Takuo Tsurushima, chief executive of the TSE, and two other senior executives resigned over the Mizuho affair.        
Template:Wikinews On January 17, 2006, the Nikkei 225 fell 2.8%, its fastest drop in nine months, as investors sold stocks across the board in the wake of a raid by prosecutors on internet company livedoor. The Tokyo Stock Exchange closed early on January 18 due to the trade volume threatening to exceed the exchange's computer system's capacity of 4.5 million trades per day. This was called the "livedoor shock." The exchange quickly increased its order capacity to five million trades a day. 
London Stock Exchange and Tokyo Stock Exchange are developing jointly traded products and share technology, marking the latest cross-border deal among bourses as international competition heats up. Tokyo Stock exchange is also looking for some partners in Asia, and more specifically with Singapore Exchange, which is considered as becoming a leading financial hub in Asia-Pacific. Recently, some rumors close to the deal are telling that Tokyo Stock Exchange is preparing for the first semester of 2008 a takeover the Singapore Exchange, or at least take a major stake. In June 2007, Tokyo Stock Exchange already purchased a 5% of SGX, and it is only the beginning of a bigger participation.
- Tokyo Stock Exchange Website
- New York Times article 13 December 2005 "Tokyo Exchange Struggles With Snarls in Electronics"
- The Register article 25 November 2005 "Fujitsu execs take pay cut after Tokyo exchange crash"
- Tokyo Stock Exchange Building