GOLDMAN SACHS: Traders fear these 15 nightmare stocks

The US stock market may be fresh off its most boring stretch in more than five decades, but there are still stocks that give investors nightmares.
In a client note Wednesday, the derivatives team at Goldman Sachs identified 15 companies that traders see as having elevated downside risk over the next 12 months.
To single out the most feared stocks in its coverage universe, Goldman looked at two measures:
Twelve-month implied volatility — the estimated price swing for a stock over the next y