The Basic Materials group has plenty of great stocks, but investors should always be looking for companies that are outperforming their peers. Has Buenaventura (BVN) been one of those stocks this year? A quick glance at the company's year-to-date performance in comparison to the rest of the Basic Materials sector should help us answer this question.Buenaventura is one of 241 individual stocks in the Basic Materials sector. Collectively, these companies sit at #16 in the Zacks Sector Rank. The Zacks Sector R ...