Jim Simons's position in Owens Corning is currently worth $16.3 Million. That's 0.02% of their equity portfolio (682nd largest holding). The first Owens Corning trade was made in Q3 2013. Since then Jim Simons bought shares twelve more times and sold shares on sixteen occasions. The stake costed the investor $13.2 Million, netting the investor a gain of 23% so far.