In the last trading session, U.S. stocks dropped for the ninth consecutive day, representing the longest slide ahead of elections since 1980. Among the top ETFs, investors saw (SPY Quick QuoteSPY - Free Report) lose 0.1%, (DIA Quick QuoteDIA - Free Report) shed 0.2% and (QQQ Quick QuoteQQQ - Free Report) move lower by 0.3% 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:

: Volume 4.61 times average

This Treasury ETF was under the microscope on Friday as around 390,000 shares moved hands. This compares with an average trading day of around 88,000 shares and came as TLO added 0.7% in the session.

The movement can largely be blamed on elections fears that led to a flight-to-safety in long term bonds. TLO was down 1.3% in the past one month and has a Zacks ETF Rank of 2 or ‘Buy’ rating with a High risk outlook.

(BBH Quick QuoteBBH - Free Report) : Volume 3.94 times average

This biotech ETF was in focus on Friday as around 281,000 shares moved hands compared with an average of roughly 74,000 shares a day. We also saw some price movement as BBH gained nearly 1.5% in the last session.

The big move was largely the result of the upcoming election in which both the Democrats Republicans have varied policies and reforms in place for the sector. This can have a big impact on the biotech stocks like what we find in this ETF portfolio. In the past one-month period, BBH was down 10.2% and has a Zacks ETF Rank of 3 or ‘Hold’ rating with a High risk outlook.

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