Sovereign Wealth Funds ( SWFs ) active buying stakes in leading Singapore banks . First SWF founded in the past six months , now total worth worldwide estimated at as much as $ 2.5 trillion . Abu Dhabi has biggest SWF , followed by Singapore , Kuwait and Norway . Secrecy of some funds stoking concern about strategic goverment stakes .
Sovereign Wealth Funds ( SWFs ) active buying stakes in leading U.S. banks . First SWF founded in 1953 , now total worth worldwide estimated at $ 2.2 trillion . Abu Dhabi has biggest SWF , followed by Singapore , Norway and Kuwait . Secrecy of some funds stoking concern about strategic goverment stakes .