In trading on Friday, the SPDR S&P Biotech ETF ( XBI ) is outperforming other ETFs, up about 1.5% on the day. Components of that ETF showing particular strength include shares of Calithera Biosciences ( CALA ), up about 11.6% and shares of Immunogen ( IMGN ), up about 7.4% on the day.
And underperforming other ETFs today is the SPDR S&P Metals & Mining ETF ( XME ), off about 1.1% in Friday afternoon trading. Among components of that ETF with the weakest showing on Friday were shares of Timkensteel ( TMST ), lower by about 5.1%, and shares of AK Steel Holding (AKS), lower by about 3.9% on the day.
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