Calix shares are up strongly this week on positive second-quarter results and are up 70% since we positively rated the stock on management buying on the 5th of May. This is what we said:

Donald Listwin (Chairman since 2007) purchased 30,000 shares on May 1 at $12.11, spending $364,000 and increasing his holdings to 1 million shares. This is an interesting large purchase from Listwin, into recent price strength and paying up from his last few purchases. Listwin’s last purchase was in February at $10.20, and prior to that in October 2019 at $7.97. His overall record in this stock is good, but not quite good enough to qualify as a “Smart Buyer”. We are ranking the stock +1.