YPF (YPF +10.5%) shares are jumping on news Carlos Slim has taken an 8.4% stake in the Argentine...

|About: YPF Sociedad Anonima (YPF)|By:, SA News Editor

YPF (YPF +10.5%) shares are jumping on news Carlos Slim has taken an 8.4% stake in the Argentine energy company, but Street Insider says the billionaire's stake may not be all it seems. Slim's stake could somehow be tied to loan defaults following the YPF nationalization; otherwise, it just "doesn't make sense" that Slim would buy into a nationalized company.