Frankfurt – The major VW and Porsche shareholder Porsche SE made less profit in the first quarter due to falling results from its core investments. The adjusted group result after taxes shrank by a fifth to 400 million euros, as the DAX group announced on Wednesday. Including the non-cash value adjustments on VW and Porsche, the net loss fell to 0.9 billion euros from 1.1 billion euros a year ago.