Northrop Grumman Faces Mixed Stock Performance Amid Defense Sector Volatility Northrop Grumman has seen its shares rise 1% over the past three months, outperforming the SPDR S&P Aerospace & Defense ETF's 3.9% drop. However, over six months, its stock fell 6.7%, trailing the ETF's 5.8% gain. Analysts remain cautiously optimistic, with a consensus 'Moderate Buy' rating and a 13% upside potential.1