What a fantastic six months it’s been for Allegro MicroSystems. Shares of the company have skyrocketed 44.5%, hitting $27. This run-up might have investors contemplating their next move. Is there a buying opportunity in Allegro MicroSystems, or does it present a risk to your portfolio? See what our analysts have to say in our full research report, it’s free for active Edge members. Why Is Allegro MicroSystems Not Exciting? We’re glad investors have benefited from the price increase, but we're cautious a ...