Joel Greenblatt's position in Automatic Data Processing is currently worth $4.25 Million. That's 0.08% of their equity portfolio (345th largest holding). The first Automatic Data Processing trade was made in Q2 2014. Since then Joel Greenblatt bought shares sixteen more times and sold shares on nineteen occasions. The stake costed the investor $2.5 Million, netting the investor a gain of 70% so far.