Einhorn Effect

The theory that states that anyone with the first name of "Einhorn" will likely not receive any romantic attention until at least into their mid-20s. However, if their last name is "Einhorn," they might do okay.

Which brings us to David Einhorn. He's a hedge fund manager...a well-known Wall Street bigwig. So well known that his pronouncements can cause dramatic moves in a company's stock.

He's known for shorting companies, meaning he bets that their share price will go down. To help ensure that his shorts make money, Einhorn will employ the media, announcing why he thinks a stock should (and probably will) decline. The Einhorn Effect then becomes a bit of a self-fulfilling prophecy. Because Einhorn says the stock should go down...it does.