ETF roundup: UBS lists gold, copper and oil funds on LSE

Invesco expands low-volatility range; Market Vectors lists business development fund on NYSE Arca; Pimco launches active currency ETF; First Trust fund gives exposure to preferred securities

UBS Global Asset Management has listed three commodities-linked exchange-traded funds (ETFs) on the London Stock Exchange. The UBS-ETF Solactive Global Pure Gold Miners ETF provides exposure to the Solactive Global Pure Gold Miners Net Total Return Index, which includes 25 international gold mining stocks; the UBS-ETF Solactive Global Copper Mining ETF provides exposure to the Solactive Global Copper Mining Net Total Return Index, which includes 27 international copper producers; and the UBS-ETF