Northrop Grumman stock heads into the open after a 1.4 percent gain

Northrop Grumman stock closed at USD 526.77 on the NYSE on September 18, 2026, up about 1.4 percent from the previous session.

According to data for Northrop Grumman Corp shown by The Globe and Mail, the shares traded between a day low of USD 519.90 and a day high of USD 528.27 on September 18, 2026, with an opening price of USD 523.68.

September 18, 2026 in numbers

Northrop Grumman Corp (ISIN US6668071029) saw its shares strengthen on September 18, 2026, closing at USD 526.77 in regular NYSE trading after moving within a range between USD 519.90 and USD 528.27 that day. Per market data presented by The Globe and Mail, the stock opened at USD 523.68 and then advanced into the close, with the final price sitting closer to the upper end of the intraday range.

In the broader market, U.S. equity benchmarks also ended the same session mostly higher, as a USTV.com post-market wrap described the four major U.S. indices closing with gains on September 18, 2026, while the Dow Jones Industrial Average slipped slightly.USTV.com The positive tone in technology and semiconductor stocks during that session provided a supportive backdrop for defense and aerospace names such as Northrop Grumman.

Space Force contract in focus today

Today, attention turns to a fresh U.S. Space Force award that Northrop Grumman secured for the GHOST-R space domain awareness mission, a prototype satellite program in geosynchronous orbit. As reported on September 20, 2026, by SatNews, the company won a prototype contract to design and construct a satellite for the Hybrid Operations and Resilient Technology - Responsive (GHOST-R) mission, expanding its role in space domain awareness efforts.SatNews The new contract adds to Northrop Grumman's defense and space backlog and may influence sentiment around the stock heading into the open, particularly as investors weigh long term revenue opportunities from U.S. government space programs.