Top 5 Holdings of Each SPDR ETF

Many investors will use the SPDR ETFs to gain broad exposure to a particular sector, but often they don't give as much thought to the underlying components of each ETF.  Below is a list of the top 5 holdings of each SPDR sector ETF.  In many cases the top 5 holdings can represent a huge portion of the ETF.  The XLY for instance holds 30% of its portfolio in its top 5 holdings, even though it claims 80 total holdings.  The bottom 5 holdings of the XLY have a combined weight of 0.77%.