A reasonable investment strategy for shares of RTN would be to buy a tranche during the current market conditions. If the shares correct appreciably between now and the next earnings date (July 22, 2013), use it as an opportunity to buy your second tranche. It's a smart bet for dollar-cost averaging. Like all of the big defense companies it literally pays to own RTN and patiently hold it. With an industry-friendly defense secretary in D.C. and the Fed keeping its monetary policies in super-accommodation mode, all of the Big Four should do quite well going forward. I just happen to think RTN is the best deal. At the time of publication, Courtenay had no positions in stocks mentioned.Follow @m8a2r1This article is commentary by an independent contributor, separate from TheStreet's regular news coverage.