In 2005, China's largest computer company Lenovo acquired IBM's personal computer business, marking the rising ambition of Chinese companies to become global brands. It calls for Lenovo to pay IBM $1.25 billion in cash and stock and assume $500 million of IBM debt.

Earlier this year, the VeeDub board approved a request by Porsche to obtain 51-percent of the company for some $15.73 billion, which would give it a majority stake. Before the house that Ferdinand built could complete its acquisition, the European Commission required it to make one last purchase, which took place in June of this year.

Why small componies can merger big compony, will the big componies get benefit from the M&A?