In the current session, Automatic Data Processing Inc. (NASDAQ:ADP) is trading at $256.74, after a 1.07% drop. Over the past month, the stock decreased by 0.84%, and in the past year, by 11.81%. With performance like this, long-term shareholders are more likely to start looking into the company's price-to-earnings ratio. Evaluating Automatic Data Processing P/E in Comparison to Its PeersThe P/E ratio measures the current share price to the company's EPS. It is used by long-term investors to analyze the comp ...