With Nordic clean-up done, Cevian prepares new broom for Germany | Reuters

STOCKHOLMSuch is the weight of Christer Gardell's voice in Europe that Volvo's share price jumped 4 percent one day in January when a Swedish business daily ran a front-page story on the activist investor calling on the truckmaker to "start delivering".

Gardell, once called a capitalist "butcher" by Swedish media, has emerged more than a decade after co-founding Cevian Capital - now a $12 billion activist fund - as Europe's biggest activist investor and one of its most influential.

Having established increasing influence in the Nordics - Cevian said this week it had nearly doubled its stake in Volvo over a six-month period - he is now trying to strengthen its presence in German