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Comparing current PE to mean PE can allow you to see if Marathon Petroleum Corp may be undervalued based on PE ratio.




* Total of 671 data points since 06/26/2011.

** From 06/26/2011 we changed 0 data points that were under -50 PE to -50 and 0 data points that were over 100 to 100. This helps smooth edge cases where companies had extreme PE ratios during certain periods. Removing these data points completely caused new issues with certain companies.