TASER International (NASDAQ:TASR) stock soared earlier this week after the company announced a sizable sale of stun guns to the San Diego Sheriff's Department. But was the run-up justified?

In the video below, Fool contributor Rich Smith crunches the numbers and asks, "Why do TASER investors think that a $208,000 profit makes TASER stock worth $13 million more than it used to?"

Fool contributor Rich Smith has no position in any stocks mentioned, and neither does The Motley Fool. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.