On the date of publication, Ian Cooper did not have (either directly or indirectly) any positions in the securities mentioned. The opinions expressed in this article are those of the writer, subject to the InvestorPlace.com Publishing Guidelines. Ian Cooper, a contributor to InvestorPlace.com, has been analyzing stocks and options for web-based advisories since 1999. Digital Realty Trust (DLR) Source: tokar / Shutterstock The last time I highlighted an opportunity in Digital Realty Trust (NYSE:DLR), it trad ...