I don't know jack about traditional Wall Street mumbo jumbo, but I read today that the Winky ETF is modeled after the GLD fund – which set records by attracting over a $billion in new investment in just 3 days. Obviously that's a pretty lazy comparison, but consider this: Bitcoin represents an entirely new asset class. Lots of institutions and investors will want to get in on this on the ground floor, whether they support or even understand virtual currencies at all. Once the general public sees how much easy money can be made, money will start pouring in. IMO the ETF is the next big step for bitcoin and it will likely be the spark for the next bubble...