In trading on Thursday, the Utilities Select Sector SPDR Fund ETF ( XLU ) is outperforming other ETFs, up about 0.6% on the day. Components of that ETF showing particular strength include shares of Pinnacle West Capital ( PNW ), up about 1.7% and shares of PPL ( PPL ), up about 1.7% on the day.
And underperforming other ETFs today is the SPDR S&P Biotech ETF ( XBI ), off about 3.3% in Thursday afternoon trading. Among components of that ETF with the weakest showing on Thursday were shares of Arrowhead Pharmaceuticals ( ARWR ), lower by about 17.2%, and shares of PTC Therapeutics (PTCT), lower by about 9.4% on the day.
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