Ken Griffin's position in ACI Worldwide is currently worth $6.26 Million. That's 0.01% of their equity portfolio (1388th largest holding). The first ACI Worldwide trade was made in Q2 2013. Since then Ken Griffin bought shares 33 more times and sold shares on 43 occasions. The stake costed the investor $4.69 Million, netting the investor a gain of 33% so far.