The decision by the CFTC, which regulates swaps and futures, constitutes the first recognition by a U.S. federal regulator of a bitcoin financial product, even if the product does not itself involve the exchange of actual bitcoins.
http://www.reuters.com/article/2014/09/12/us-usa-bitcoin-cftc-idUSKBN0H71FU20140912?feedType=RSS&feedName=technologyNews
And is a nod to the big boys to start pushing bitcoin around.
note in the article that a prerequisite to the approval was the construction of a non-manipulable index which ended up being a composite of 6 exchanges, presumably spread round the world, which is exactly what i have been arguing needs to be done to prevent the pushing around you indicate. this is key and should represent an opportunity for more quality well run exchanges to hopefully open up to spread the risk.