How much notice do you have to give? http://egotastic.in.net egotasticallstars.com A glut of international mergers and acquisitions and the relaxation of ownership rules meant 53.2pc of Britain's £1.8 trillion stock market was owned by international investors, the Office for National Statistics (ONS) said on Wednesday, up from 43.4pc in 2010. By comparison, less than 20pc of the UK stock market was owned by foreign investors two decades ago.