Luxury carmaker Porsche is leaving Germany's leading share index, the DAX, and is being downgraded to the MDAX listing of medium-sized companies, German exchange operator Deutsche Börse Group said on Wednesday. The German sports car maker went public at the end of September 2022 and, as a promising newcomer, celebrated one of the largest initial public offerings (IPO) in German economic history. Just a few months later, the then still highly profitable company was added to the DAX. The shares started at an issue price of €82.50 (about $96.22) at the IPO and rose to almost €120 in the months th...