Invesco FTSE RAFI Developed Markets ex-U.S. ETF (NYSEARCA:PXF – Get Free Report) shares saw unusually-strong trading volume on Tuesday . Approximately 36,749 shares traded hands during mid-day trading, a decline of 65% from the previous session’s volume of 103,558 shares.The stock last traded at $42.43 and had previously closed at $42.79. Invesco FTSE RAFI Developed […]