All these "bitcoin" investment funds are just making bitcoin move with the stock market. It correlates bitcoin to all the other wall street toys. Traders panic on some foreign debt problem, like today, and bitcoin goes down with the market when it should be going up with gold.
They might even be artificially expanding bitcoin liquidity with all their off-blockchain artificial bitcoin and keeping prices down. Whatever they are they are not bitcoin, you buy bitcoin and it's on the blockchain, these things are artificial bitcoin and are not on the blockchain... there's not a 21 million coin programmed limit on these things, it's limited only by what wall street can get away with and they can get away with a lot.
I've been saying these are a bad thing from the start and I'm worried I'm right. If you don't have the private key, you don't have the bitcoin, period.
As bitcoin becomes more mainstream, the ecosystem will inevitably expand to include more payment mechanisms, more merchants accepting bitcoin but also more ways to invest in bitcoin-related businesses -- just like there are a gazillion banks, credit card companies etc out there to buy shares in right now. No?