Joel Greenblatt's position in Qualys is currently worth $12.3 Million. That's 0.19% of their equity portfolio (88th largest holding). The first Qualys trade was made in Q4 2014. Since then Joel Greenblatt bought shares fifteen more times and sold shares on seventeen occasions. The stake costed the investor $11.9 Million, netting the investor a gain of 3.6% so far.