VW's share price explosion came after Porsche announced plans to boost its stake in the company (28.10.2008) - je 21

In Frankfurt, Germany's DAX index has been trading sharply higher - spurred by a massive boost from Volkswagen shares. Financial regulators say they're keeping a close eye on trading in VW shares, which cost just 150 Euros at the beginning of the year but briefly peaked at more than 1-thousand today. VW's share price explosion came after Porsche announced plans to boost its stake in the company to 75 percent, leaving shares in very short supply but causing a surge in demand.