May 2015 Monthly Sell Call Competition

Can you identify a company with downside potential over the next month and rank highly in the Monthly Sell Call Competition?

Entry is simple; pick one London Stock Exchange listed stock that you believe has the most downside potential over the course of May 2015 and email your pick to, using the site's contact form or via twitter where you simply need to tweet across your entry. You must email both a Display Name and Your Pick, and once verified as adhering to the RULES they will be added to the table below. Good Luck!