The stock's performance has been mixed relative to the market, and its peers and investors need to consider a couple of key points before buying.A look at the one-year, three-year, and five-year performance of RTX (RTX +0.70%) compared to the S&P 500 index and its peer, GE Aerospace (GE +3.95%), reveals a lot about the stock and its investment proposition. In general, it's good news for RTX investors, but there are nuances here that might prompt you to think more deeply about the stock.RTX pleases investors ...