Benzinga's Top Downgrades By: Benzinga via Benzinga April 03, 2014 at 07:47 AM EDT Analysts at Piper Jaffray downgraded VIVUS (NASDAQ: VVUS) from “neutral” to “underweight.” The target price for VIVUS has been lowered ... Read More >> Related Stocks: CF Industries Holdings CSX Corp Deutsche Bank Ag Vivus Inc