Investors interested in Transportation stocks should always be looking to find the best-performing companies in the group. Has Canadian Pacific Railway (CP) been one of those stocks this year? Let's take a closer look at the stock's year-to-date performance to find out.Canadian Pacific Railway is a member of our Transportation group, which includes 153 different companies and currently sits at #6 in the Zacks Sector Rank. The Zacks Sector Rank considers 16 different groups, measuring the average Zacks Rank of the individual stocks within the sector to gauge the strength of each group.The Zacks Rank is a proven model that highlights a variety of stocks with the right characteristics to outperform the market over the next one to three months. The system emphasizes earnings estimate revisions and favors companies with improving earnings outlooks. CP is currently sporting a Zacks Rank of #1 (Strong Buy).Within the past quarter, the Zacks Consensus Estimate for CP's full-year earnings has moved 6.41% higher. This is a sign of improving analyst sentiment and a positive earnings outlook trend.Our latest available data shows that CP has returned about 12.44% since the start of the calendar year. In comparison, Transportation companies have returned an average of -4.96%. This means that Canadian Pacific Railway is outperforming the sector as a whole this year.Looking more specifically, CP belongs to the Transportation - Rail industry, a group that includes 10 individual stocks and currently sits at #20 in the Zacks Industry Rank. On average, this group has gained an average of 11.62% so far this year, meaning that CP is performing better in terms of year-to-date returns.CP will likely be looking to continue its solid performance, so investors interested in Transportation stocks should continue to pay close attention to the company.Want the latest recommendations from Zacks Investment Research? Today, you can download 7 Best Stocks for the Next 30 Days. Click to get this free report Canadian Pacific Railway Limited (CP): Free Stock Analysis Report To read this article on Zacks.com click here. Zacks Investment Research