Utilize the input text as a context reference, choose the right relationship between 'IP Group' and 'LONDON' from the options.
Options: platform, industry, headquarters location, stock exchange

LONDON (ShareCast) - (ShareCast News) - IP Group (LSE: IPO.L - news ) has made a £50.3m fair value gain in the value of its stake in portfolio company Oxford Nanopore Technologies after the Oxford University spin-out venture raised £70m in a new financing round.
headquarters location