Friday's ETF Movers: OIH, PTF

And underperforming other ETFs today is the Invesco Dorsey Wright Technology Momentum ETF, down about 7.2% in Friday afternoon trading. Among components of that ETF with the weakest showing on Friday were shares of Aehr Test Systems, lower by about 14.3%, and shares of AXTI, lower by about 12.6% on the day.

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