In the last trading session, Wall Street recorded their worst decline, a day after any election in a decade. Among the top ETFs, (SPY Quick QuoteSPY - Free Report) lost 2.1% and (DIA Quick QuoteDIA - Free Report) shed 1.9%, while (QQQ Quick QuoteQQQ - Free Report) moved 2.3% 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.

(PXJ Quick QuotePXJ - Free Report) : Volume 3.43 Times Average

This energy ETF was in the spotlight as around 742,000 shares moved hands compared with an average of 229,000 shares a day. We also saw some price movement as PXJ plunged 5% in the last session.

The move was largely the result of the Republicans failing to sweep through midterm elections that could have a big impact on energy ETFs like the ones we find in this ETF portfolio. PXJ has climbed 27.6% over the past month and carries a Zacks ETF Rank #2 (Buy) with a High risk outlook.

(VTI Quick QuoteVTI - Free Report) : Volume 3.34 Times Average

This large-cap ETF was under the microscope as nearly 8.7 million shares moved hands. This compared with an average trading volume of roughly 4.4 million shares and came as VTI shed 2.1% in the last trading session.

The movement can largely be blamed on mid-term election, following which the race for control of Congress remains unclear. VTI  has gained 5.1% in a month and has a Zacks ETF Rank #3 (Hold) with a Medium risk outlook.