The Prince of Risk : a novel / Christopher Reich.

Enhanced descriptions from Syndetics:

At the crossroads of high finance and international terrorism, a New York hedge-fund manager searches for the truth behind his father's murder.

The master of the financial thriller returns.

"Christopher Reich is a superstar."--Lee Child

Bobby Astor is a fearless New York hedge-fund gunslinger on the verge of making his biggest killing ever. But everything changes when his father, the venerable chief executive of the New York Stock Exchange, is murdered along with the head of the Federal Reserve in a brazen, inexplicable attack on the South Lawn of the White House. In the moments before his death, Astor's father sends Bobby a mystifying text message . . . a single word that Bobby soon realizes offers the only clue to the identity of his father's killer and the terrifying motivation behind the attack.
     As Bobby unravels the mystery behind his father's death, he crosses paths with his ex-wife, no-nonsense Special Agent Alex Forza of the FBI, who is hot on the trail of a band of elite international terrorists intent on infiltrating New York City. All the while, Bobby must fight to hold together his increasingly risky business deal. At stake is not only the survival of his company and a colossal fortune . . . but also a sophisticated foreign conspiracy that threatens the entire financial system of the United States.
     The Prince of Risk is Christopher Reich's most prescient, suspenseful, and entertaining thriller, a novel that anticipates the headlines of the near future and shows, once again, why The New York Times calls Reich "the John Grisham of Wall Street."