In a study of analyst recommendations at the major brokerages, for the underlying components of the S&P 500, Marathon Oil Corp. (NYSE: MRO) has taken over the #125 spot from General Dynamics Corp. (NYSE: GD), according to ETF Channel. Below is a chart of Marathon Oil Corp. versus General Dynamics Corp. plotting their respective rank within the S&P 500 over time (MRO plotted in blue; GD plotted in green):