Ken Griffin's position in NiSource is currently worth $132 Million. That's 0.13% of their equity portfolio (174th largest holding). The investor owns 1.25% of the outstanding NiSource stock. The first NiSource trade was made in Q2 2013. Since then Ken Griffin bought shares 50 more times and sold shares on 44 occasions. The stake costed the investor $128 Million, netting the investor a gain of 3.1% so far.