A key bellwether of North Korea tensions is surging

Tension between the US and North Korea helped create a small dent in several stock markets around the world on Wednesday.
But one stock, described as a bellwether of tensions in the Korean peninsula, is making an outsized move higher. 
Shares of Victek, a South Korean maker of military equipment, surged by as much as 20%. South Korea, a longtime US ally and North Korean adversary, may need to increase investment in its defense systems if conflict escalates, Bloomber