The Auto-Tires-Trucks group has plenty of great stocks, but investors should always be looking for companies that are outperforming their peers. Is Cummins (CMI) one of those stocks right now? By taking a look at the stock's year-to-date performance in comparison to its Auto-Tires-Trucks peers, we might be able to answer that question.Cummins is a member of the Auto-Tires-Trucks sector. This group includes 108 individual stocks and currently holds a Zacks Sector Rank of #12. The Zacks Sector Rank includes 1 ...