Ken Fisher acquired 134 Thousand Teradyne shares worth $10.4 Million. That's 0.00% of their equity portfolio (410th largest holding). The first Teradyne trade was made in Q1 2013. Since then Ken Fisher bought shares 21 more times and sold shares on 25 occasions. The stake costed the investor $2.94 Million, netting the investor a gain of 253% so far.