For those looking to find strong Basic Materials stocks, it is prudent to search for companies in the group that are outperforming their peers. Ero Copper Corp. (ERO) 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? By taking a look at the stock's year-to-date performance in comparison to its Basic Materials peers, we might be able to answer that question.Ero Copper Corp. is one of 237 companies in the Basic Materials g ...