Icahn Enterprises has a trailing-12-month dividend yield of 31%, but investors must consider the following before buying the stock.Icahn Enterprises (IEP -5.38%), headed by activist investor Carl Icahn, has paid out a very appealing dividend yield for years. However, the stock has been under significant pressure since last year when it was the subject of one prominent short-seller and the target of a recent Securities and Exchange Commission (SEC) investigation.Icahn Enterprises stock is down 44% from its 5 ...