Joel Greenblatt's position in Roblox is currently worth $17.7 Million. That's 0.18% of their equity portfolio (114th largest holding). The first Roblox trade was made in Q2 2021. Since then Joel Greenblatt bought shares five more times and sold shares on five occasions. The stake costed the investor $10.1 Million, netting the investor a gain of 74% so far.