The London Stock Exchange is a stock exchange located in the City of London in the United Kingdom. As of December 2011, the Exchange had a market capitalisation of US$3.266 trillion (short scale), making it the fourth-largest stock exchange in the world by this measurement (and the largest in Europe). The Exchange was founded in 1801 and its current premises are situated in Paternoster Square close to St Paul's Cathedral in the City of London. The Exchange is part of the London Stock Exchange Group.
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