No. It is, however, a very profitable asset to make markets in,. That implies huge market inefficiencies and a large population of low-infomration market participants. The problem is the low size and liquidity make other markets more profitable to think about, since 10% of ten or twenty billion is less than a few basis points [1] of trillions.

[1] http://www.investopedia.com/terms/b/basispoint.asp