YPF plummets on Wall Street after Judge Preska's ruling: it lost up to 7%.

YPF shares plummeted sharply on Wall Street this Monday after the U.S. court ordered Argentina to hand over 51% of the company to beneficiaries of the lawsuit alleging its expropriation during the Kirchner administration.

In just a few hours, the state-owned oil company's stock fell as much as 7% on the New York Stock Exchange , trading at around US$31.57 per share, dragging down the rest of Argentine assets. Meanwhile, the informal dollar rose again, and sovereign bonds deepened their decline.

The funds Preska ruled in favor of are Burford and Eton Capital. The judge agreed to seize the Argentine oil company's shares, stating: "The Argentine Republic will transfer its Class D shares of YPF to a global escrow account at BNYM in New York within 14 days of the date of this order."

The reaction to the ruling also impacted the Buenos Aires Stock Exchange. After midday, it fell 2.4% in dollar terms, despite the positive start it had seen on Monday. Sovereign bonds also fell, while the various exchange rates rose to $10.

The official dollar closed at $1.165 for buying and $1.215 for selling. The "blue" dollar is offered at $1.200 for buying and $1.220 for selling. The wholesale dollar trades at $1.196 and $1.205 for both ends. Meanwhile, the MEP is worth $1,210.15, and the Contado con Liquidación (CCL) is worth $1,212.71.