In the last trading session, Wall Street was downbeat. Among the top ETFs, (SPY Quick QuoteSPY - Free Report) lost 0.8%, (DIA Quick QuoteDIA - Free Report) shed 0.04%, while (QQQ Quick QuoteQQQ - Free Report) moved 1.4% down on the day.

Two more specialized ETFs are worth noting as both saw trading volume that was far outside of normal. In fact, both these funds experienced volume levels that were more than double their average for the most-recent trading session. This could make these ETFs the ones to watch out for in the days ahead to see if this trend of extra interest continues.

(DGZ Quick QuoteDGZ - Free Report) : Volume 4.15 Times Average

This inverse leveraged gold ETN was in the spotlight as around 13,678 shares moved hands compared with an average of 3,30000 shares a day. We also saw some price movement as DGZ plunged 1.5% in the last session.

(EIDO Quick QuoteEIDO - Free Report) : Volume 3.27 Times Average

This Indonesia ETF was under the microscope as nearly 1.8 million shares moved hands. This compared with an average trading volume of roughly 560,470 shares and came as EIDO shed 2.6% in the last trading session.