The SPDR S&P Global Natural Resources ETF is seeing unusually high volume in afternoon trading Thursday, with over 140,000 shares traded versus three month average volume of about 100,000. Shares of GNR were off about 2.2% on the day.

Components of that ETF with the highest volume on Thursday were Halliburton, trading down about 6% with over 12.9 million shares changing hands so far this session, and Vale, up about 0.9% on volume of over 8.7 million shares. Newmont Goldcorp is the component faring the best Thursday, higher by about 1.9% on the day, while Devon Energy is lagging other components of the SPDR S&P Global Natural Resources ETF, trading lower by about 6.7%.