This article was automatically generated by Dow Jones using technology from Automated Insights.

Shares of Northrop Grumman Corp. shed 4.2% to $483.48 on what proved to be an all-around grim trading session for the stock market, with the S&P 500 Index falling 0.3% to 7,651.54 and Dow Jones Industrial Average falling 0.9% to 50,906.05.

This was the stock's third consecutive day of losses.

Northrop Grumman Corp. closed 37.5% short of its 52-week high of $774.00, which the company achieved on March 3rd.

The stock underperformed when compared to some of its peers, as RTX Corp. fell 0.7% to $185.65, Boeing Co. fell 0.9% to $186.05, and Lockheed Martin Corp. fell 0.58% to $509.25.

Trading volume totaled 1.5 million, compared to the 50-day average of 782,860.

Data source: Dow Jones Market Data, FactSet