In the current session, the stock is trading at $424.65, after a 0.54% increase. Over the past month, Cummins Inc. (NYSE:CMI) stock increased by 8.29%, and in the past year, by 29.72%. With performance like this, long-term shareholders are optimistic but others are more likely to look into the price-to-earnings ratio to see if the stock might be overvalued.How Does Cummins P/E Compare to Other Companies?The P/E ratio is used by long-term shareholders to assess the company's market performance against aggreg ...