Icahn’s investment company discloses federal investigation — and earnings call yields zero questions

Carl Icahn’s investment arm disclosed a federal investigation of its business on Wednesday, just weeks after a short seller’s report accused it of inflating asset values, wiping $4 billion off its market value in a single day.

In its 10-Q filing with the Securities and Exchange Commission, Icahn Enterprises L.P. IEP said the U.S. Attorney’s Office for the Southern District of New York contacted it on May 3 seeking information relating to corporate governance, capitalization, securities offerings, dividends, valuation, marketing…