BALTIMORE (Stockpickr) — We’ve all heard that the best defense is a good offense. That Sun Tzu-esque strategy may be sage wisdom for some fields, but certainly not for investing. As an investor, the best defense is a good defense. And the best offense is a good defense too. 5 Stocks Under $10 Set to Soar … Click to view a price quote on BA . Click to research the Aerospace/Defense industry.