Joel Greenblatt acquired 268k Pinnacle West Capital shares worth $23.9M. That's 0.14% of their equity portfolio (148th largest holding). The first Pinnacle West Capital trade was made in Q4 2014. Since then Joel Greenblatt bought shares eighteen more times and sold shares on seven occasions. The stake costed the investor $23M, netting the investor a gain of 4.2% so far.