Your best bet would be to convince these guys:
http://www.nasdaq.com/symbol/slvto create a bitcoin ETF
http://en.wikipedia.org/wiki/Exchange-traded_fundThey are required to purchase the same number of ounces of silver for each share
So if that SLV is trading at 25 dollars, Silver is roughly worth 25 dollars.
Now if that happened for Bitcoin, everyone's 401k plan could buy into that, and force that ETF to buy massive amounts of bitcoins to keep it funded.
That's how you go from $130 to $130,000
Starting an exchange now is like putting a gun to your head. There are so many regulations designed to keep you out of that type of business.
The ETF idea is a non-starter... here's a long discussion.
"So hey. I structure ETFs for a very large company.
A couple of three things: 1) The biggest issue you're going to run into is related to the concept of exemptive relief- that is, ETC (formerly a company called Faithshares, kind of funny) does not have the requisite permission from the SEC to launch non-index based products. Don't worry about making a bitcoin index, the SEC will only allow securities-based indices. Bitcoins, like all currencies, are not actually securities. 2) The best route for you would be a commodity pool built through the 19b-4 process, whereby you partner with an exchange to request permission from the SEC. Best case scenario this will take at least six months to get through, but honestly, you would not get through. 3) Seed is the last thing you should worry about. Lead market makers/IBs will put this up, provided you have (very) strong relationships with them. 4) Ok, serious here. The biggest issue is the lack of arbitragibility (not a word, but bear with me) between the ETF and the underlying bitcoins. This market is pathetically small and insanely illiquid. It simply is not a mature enough space to package into a product."
http://www.reddit.com/r/Bitcoin/comments/19hxuv/bitcoin_etf/There are 2 other approaches to this...
(1) Start a hedge fund with accredited investors. One exits in Malta. Google it.
(2) Reverse takeover a junior company on the TSX or London Junior or Ireland...
But the Exchange MUST be reputable...
Use all the invested capital to buy/trade BTC...
But you will have to pay Management + Admin costs in the $500K range...
So you would need $5-10 million for this.