Investors interested in Basic Materials stocks should always be looking to find the best-performing companies in the group. Is Cabot (CBT) one of those stocks right now? Let's take a closer look at the stock's year-to-date performance to find out.Cabot is a member of our Basic Materials group, which includes 241 different companies and currently sits at #7 in the Zacks Sector Rank. The Zacks Sector Rank considers 16 different groups, measuring the average Zacks Rank of the individual stocks within the secto ...