7 Undervalued Defense Stocks to Buy Now Though nothing to be celebrated, Russia’s ongoing invasion of Ukraine translates into substantial interest toward defense stocks. Raytheon Technologies ( RTX ): An icon of the Ukrainian resistance due to its advanced weapons systems, Raytheon is one of the biggest organic marketing beneficiaries among defense stocks. Heico ( HEI ): A defense contractor specializing in manufacturing vital parts and components, Heico serves relevant aeronautical weapons systems. BWX Technologies ( BWXT ): Perhaps best known for its naval nuclear propulsion services, BWX Technologies could become cynically important if geopolitical tensions escalate. Aerojet Rocketdyne ( AJRD ): With the Kremlin talking about nuclear warfare, Aerojet Rocketdyne’s hypersonic missile technology is sadly relevant. AeroVironment ( AVAV ): The manufacturer of the Switchblade loitering missile system, AeroVironment is shifting the paradigm in Ukraine. Moog ( MOG-A , MOG-B ): Though not a household name among civilians, Moog is among the “background” defense stocks to buy now, playing a pivotal role behind the scenes.