Joel Greenblatt's position in Discover Financial Services is currently worth $2.48 Million. That's 0.04% of their equity portfolio (534th largest holding). The first Discover Financial Services trade was made in Q1 2015. Since then Joel Greenblatt bought shares thirteen more times and sold shares on nineteen occasions. The stake costed the investor $1.95 Million, netting the investor a gain of 28% so far.