You know loaded, with the level of bitcoin wealth you have- you could probably convince some large investors to join you in creating some sort of market stability mechanism. In particular- we need a way to arbitrage between exchanges. Not on the individual trader level, but on the larger market level. Like a meta exchange. Where every time you make a purchase of bitcoin you were getting it at the lowest possible price worldwide, and every time you sold a bitcoin you were selling it at the highest possible price worldwide. That would go a long way to ironing out the market stability.
BitPay has that system for internal use. They pull all bids & ask from all exchanges and always buy low, sell high. Supposedly when you use their service you are reaping the benefits of that.