NEW YORK (TheStreet) -- The Utilities Select Sector SPDR Fund and the iShares Transportation Average ETF represent two of the three worst-performing sectors for the first half of 2015. But that changed in July. The utilities exchange-traded fund mirrors the Dow Jones Utility Average, which is down 6.3% year to date but remains in correction territory down 11.4% from its all-time intraday high set on Jan.