Invesco RAFI Developed Markets ex-U.S. ETF (NYSEARCA:PXF – Get Free Report) saw an uptick in trading volume on Tuesday . 443,798 shares changed hands during mid-day trading, an increase of 434% from the previous session’s volume of 83,161 shares.The stock last traded at $62.8250 and had previously closed at $62.14. Invesco RAFI Developed Markets ex-U.S. […]