Healthcare Sector Leads Year-to-date PerfChart
The Healthcare SPDR (XLV) is the top performing sector in 2013. Yes, XLV is even outperforming the Finance SPDR (XLF). Note that the PerfChart below shows relative performance. Sectors with positive relative performance are up more than the S&P 500. Sectors with negative relative performance are up less than the index.

Click this image for a live chart.