Joel Greenblatt's position in Digital Realty Trust is currently worth $53.7M. That's 0.15% of their equity portfolio (110th largest holding). The first Digital Realty Trust trade was made in Q4 2016. Since then Joel Greenblatt bought shares twenty more times and sold shares on nine occasions. The stake costed the investor $46.6M, netting the investor a gain of 15% so far.