In the past trading session, U.S. stocks were in the red due to weak economic data coming in from the U.S. housing sector, subdued exports’ data from Japan and uncertainty about U.S.-China trade relation. Among the top ETFs, investors saw (SPY Quick QuoteSPY - Free Report) lose 1.3%, (DIA Quick QuoteDIA - Free Report) move lower by 1.2% and (QQQ Quick QuoteQQQ - Free Report) lose 2.0% 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, both these funds experienced volume levels that were more than double their average for the most recent trading session. This could make these ETFs ones to watch in the days ahead to see if this trend of extra-interest continues:

(SPYV Quick QuoteSPYV - Free Report) : Volume 4.0 times average

This value ETF was in focus yesterday as roughly 7.6 million shares moved hands compared with an average of roughly 1.9 million shares. We also saw some share price movement as shares of SPYV lost 1.3%.

The big move can largely be blamed on the declining global market sentiment on poor U.S. homes sales data for December and uncertainty surrounding trade war resolutions. For the month, SPYV is up 4.9%. It has a Zacks ETF Rank #1 (Strong Buy).

(UBT Quick QuoteUBT - Free Report) : Volume 3.8 times average

This leveraged bond ETF was under the microscope yesterday as nearly 100,000 shares moved hands. This compares to an average trading day of 26,600 shares and came as UBT gained 1.3%.

The outsized volume was the result of a fall in global market sentiment, which forced investors to rotate out of riskier securities toward safe haven assets. UBT has been down 2.2% in the past one month.

Want key ETF info delivered straight to your inbox?

Zacks’ free Fund Newsletter will brief you on top news and analysis, as well as top-performing ETFs, each week. Get it free >>