The Transportation group has plenty of great stocks, but investors should always be looking for companies that are outperforming their peers. Has Kirby (KEX) 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 Transportation sector should help us answer this question.Kirby is a member of the Transportation sector. This group includes 135 individual stocks and currently holds a Zacks Sector Rank of #16. The Zacks Sector Rank gauges the ...