In the latest trading session, Axcelis Technologies (ACLS) closed at $87.12, marking a +1.61% move from the previous day. The stock exceeded the S&P 500, which registered a loss of 0.28% for the day.

Why do so many teenage girl athletes tear their ACLs? And why do coaches, parents and players often fail to do the prevention work, strength exercises, etc. that might help protect vulnerable limbs?

Someone jumps or makes a sudden move towards the ball. When they land and plant their feet, I hear a loud, familiar “pop.” In the brief second of silence that follows, the thought “I hope it’s just a ...