) are higher on the session by 1.38%, currently trading at $12.15. The stock has been moving largely lower over the past three months and is currently trading below the 50-day moving average. Options traders are focusing on calls today. A short while ago the October 2011 $12.50 call traded 1,300 times on open interest of 2,586 contracts. Calls are outpacing puts today by 2,000 to 1. Developers Diversified Realty Corporation is a self-administered and self-managed real estate investment trust, is engaged in the business of owning, managing and developing a portfolio of shopping centers and, to a lesser extent, office properties.