Tuesday's ETF Movers: PHO, PTF

And underperforming other ETFs today is the Invesco Dorsey Wright Technology Momentum ETF, down about 8.3% in Tuesday afternoon trading. Among components of that ETF with the weakest showing on Tuesday were shares of Amkor Technology, lower by about 23.6%, and shares of Sandisk, lower by about 14.4% on the day.

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