Hindenburg Research targets billionaire Icahn with new short position.

Hindenburg Research has taken a short position in Icahn Enterprises, controlled by activist investor Carl Icahn, alleging that the valuation of IEP units was inflated by more than 75% and that "IEP trades at a 218% premium to its last reported net asset value (NAV), vastly higher than all comparables." Hindenburg also claimed Icahn was operating a "ponzi-like economic structure," selling its units to new investors to support its dividend payouts. Icahn Enterprises did not immediately respond to a request for comment.