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FRANKFURT AM MAIN, GERMANY - OCTOBER 02: Oliver Samwer, CEO of Rocket Internet, celebrate the launch of the company's initial public offering (IPO) of shares on the Frankfurt Stock Exchange, on October 2, 2014 in Frankfurt am Main, Germany. (Photo by Hannelore Foerster/Getty Images)

FRANKFURT AM MAIN, GERMANY - OCTOBER 02:  Oliver Samwer, CEO of Rocket Internet, celebrate the launch of the company's initial public offering (IPO) of shares on the Frankfurt Stock Exchange, on October 2, 2014 in Frankfurt am Main, Germany.  (Photo by Hannelore Foerster/Getty Images)