Joel Greenblatt acquired 173 Thousand Walmart shares worth $16.9 Million. That's 0.17% of their equity portfolio (125th largest holding). The first Walmart trade was made in Q4 2011. Since then Joel Greenblatt bought shares 28 more times and sold shares on 24 occasions. The stake costed the investor $4.8 Million, netting the investor a gain of 252% so far.