In the last trading session, the U.S. stocks were mixed. A positive-but-cautious Fed meet, in which interest rates were unchanged, did not affect the markets much. Among the top ETFs, investors saw (SPY Quick QuoteSPY - Free Report) gain over 0.1%, (DIA Quick QuoteDIA - Free Report) move lower by over 0.1% and (QQQ Quick QuoteQQQ - Free Report) advance about 0.4% on the day.

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

(EEMA Quick QuoteEEMA - Free Report) : Volume 3.05 times average

This emerging Asia ETF was under the microscope on July 28, as nearly 27,350 shares moved hands. This compares to an average trading volume of 9,000 shares and came as EEMA gained about 0.4 % in the session.

The movement can largely be credited to the dovish Fed meeting that boosted emerging Asian stocks. In the last one-month period, VPL was up about 6.6%. The fund has a Zacks ETF Rank #3 (Hold).

: Volume 2.63 times average

This utility ETF was in focus yesterday as roughly 92,000 shares moved hands compared to an average of roughly 35,000 shares.We also saw some price movement as shares of RYU gained over 0.2% yesterday.

With the Fed meeting continuing to be accommodative, benchmark U.S. Treasury yields slipped to 1.52% as of July 28, 2016.  As a result, this high-yielding utility ETF garnered investor attention. Utilities perform better in a low-yield environment. In the last one-month period, RYU was up about 1.5%. The fund has a Zacks ETF Rank #3.

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