This article was automatically generated by MarketWatch using technology from Automated Insights.
Shares of Northrop Grumman Corp. (NOC) slid 1.45% to $540.69 Friday, on what proved to be an all-around grim trading session for the stock market, with the S&amp;P 500 Index falling 1.24% to 7,408.50 and Dow Jones Industrial Average falling 1.07% to 49,526.17.
This was the stock's third consecutive day of losses.
Northrop Grumman Corp. closed 30.14% short of its 52-week high of $774.00, which the company achieved on March 3rd.
The stock demonstrated a mixed performance when compared to some of its competitors Friday, as RTX Corp. (RTX) fell 2.56% to $171.18, Boeing Co. (BA) fell 3.80% to $220.49, and Lockheed Martin Corp. (LMT) fell 0.85% to $516.01.
Trading volume (626,840) remained 152,607 below its 50-day average volume of 779,447.
Data source: Dow Jones Market Data, FactSet. Data compiled May 15, 2026.
This content was created by MarketWatch, which is operated by Dow Jones &amp; Co. MarketWatch is published independently from Dow Jones Newswires and The Wall Street Journal.
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05-15-26 1642ET

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Northrop Grumman Corp. (NOC) shares fell 1.45% to $540.69, marking the third consecutive day of losses amid a declining stock market. Despite this, NOC outperformed competitors like RTX Corp. (-2.56%), Boeing Co. (-3.80%), and Lockheed Martin Corp. (-0.85%). The stock remains 30.14% below its 52-week high of $774.00 reached on March 3rd.

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