Defense stocks take the spotlight again Wednesday as intensely aggressive rhetoric between the U.S. and North Korea further throttles global stability.

Washington and Pyongyang have been in an intense back-and-forth, with President Trump threatening on Tuesday "fire, fury and frankly power the likes of which this world has never seen before" and North Korea promising to "turn the U.S. mainland into the theater of a nuclear war" at first sign of a U.S. attack.

Lockheed Martin Corp (LMT - Get Report) stock is trading up 1.62% to $304.96 per share Wednesday midday. The aerospace and security company has seen a 22% increase in the price of its stock since the start of 2017, in line with stocks of industry peers that have increased in price since President Trump's inauguration on the expectation of increased defense spending.

Shares of government defense contractor Raytheon Co (RTN - Get Report) traded up 2.48% to $179.14 Wednesday midday. Raytheon shares are up 26% this year.

Boeing Co (BA - Get Report) , the Dow Jones Industrial Average top performer this year, is down 0.76% to $236.28 per share. Boeing shares have rocketed almost 52% this year.

Northrop Grumman Corp (NOC - Get Report)  stock is up 1.33% to $273.42 Wednesday midday. Year-to-date, the Virginia-based company's stock is up 17%.

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