Ken Griffin's position in Tenet Healthcare is currently worth $127 Million. That's 0.17% of their equity portfolio (112th largest holding). The investor owns 1.80% of the outstanding Tenet Healthcare stock. The first Tenet Healthcare trade was made in Q2 2013. Since then Ken Griffin bought shares 45 more times and sold shares on 33 occasions. The stake costed the investor $70.1 Million, netting the investor a gain of 80% so far.