Shares of ROBO Global Robotics & Automation ETF (NYSEARCA:ROBO – Get Rating) saw unusually-high trading volume on Tuesday . Approximately 252,609 shares were traded during mid-day trading, an increase of 134% from the previous session’s volume of 108,040 shares.The stock last traded at $53.95 and had previously closed at $54.60. ROBO Global Robotics & Automation […]