Soaring about 14% over the past three months, RTX (RTX -0.23%) stock has outperformed the S&P 500 which has risen about 9% during the same period. And Cai von Rumohr, an analyst at TD Cowen Financial, doesn't think the stock's climb is over. In fact, von Rumohr is optimistic about the stock's potential and recently raised his price target on the aerospace and defense conglomerate from $106 to$115. That implies a 22% upside over the next 12 months or so from its current price. But one analyst's improved out ...