Best And Worst ETFs Of Last Week By: TalkMarkets February 13, 2018 at 01:46 AM EST Against such a volatile backdrop, last week a few ETFs saw a huge spike while several were laggards. Read More >> Related Stocks: GX MSCI China Materials ETF S&P Oil & Gas Eqpt & Services SPDR UBS AG VelocityShares VIX Variable Long/Short ETN linked to the S&P 500 VIX Futu