Cantor Fitzgerald’s bid to win more than $1 billion in damages from American Airlines for negligence in failing to prevent one of the Sept. 11, 2001, hijackings that ended in destruction of the World Trade Center has been rejected as excessive by a federal judge.

Southern District Judge Alvin K. Hellerstein ruled yesterday in Cantor Fitzgerald & Co. v. American Airlines, Inc., 21 MC 101 (AKH), that the financial services firm, which lost 658 employees in the terror attacks, presented an amended damages claim that was “substantially inflated by the losses caused by the deaths of its employees.”