Aerospace and defense sector may keep flying high for years to come By: MarketWatch September 18, 2018 at 05:08 AM EDT There’s no shortage of demand for weapons systems, fed by a larger defense budget. Read More >> Related Stocks: Boeing Co Carpenter Technology Corp Haynes Intl Inc Lockheed Martin Northrop Grumman Raytheon Co S&P Aerospace & Defense SPDR US Aerospace & Defense Ishares ETF Wesco Aircraft Holdings Inc