And they took advantage of an error-strewn Falcons performance, which began when Armitage picked up Tait's spilled ball and sent in Ojo for the first of his three tries, all of which were converted by Ryan Lamb.

BBC: Premiership: Newcastle 12-46 London Irish

In his first game in charge at the Millennium Stadium, Wales showed flashes of their ability, but an error-strewn performance meant they led the Scots by just 17-15 after 60 minutes.

BBC: Gatland promises more tinkering

These two scenarios can create an environment where performance expectations of investors may not be met due to the tracking error versus the underlying commodity index that is created.

FORBES: Three Ways To Gain Exposure To Oil