SPDR S&P Homebuilders ETF (NYSEArca: XHB)
YTD: Up 15%
Decline From 2006 High: Almost 32%
Comment: Clearly, there are big differences between the recent performances of XHB and ITB. That has to do with XHB being more exposed to discretionary side of residential real estate rather than is ITB. Said another way, weakness in shares of homebuilders will take a great toll on ITB than it will on XHB.