The Business Services group has plenty of great stocks, but investors should always be looking for companies that are outperforming their peers. Parsons (PSN) is a stock that can certainly grab the attention of many investors, but do its recent returns compare favorably to the sector as a whole? Let's take a closer look at the stock's year-to-date performance to find out.Parsons is a member of our Business Services group, which includes 316 different companies and currently sits at #5 in the Zacks Sector Ra ...