the large banks banks (longs) -- both central & commercial --caught the specs short again -- same play 3 weeks ago in yen -- and they know that even if the specs come up the the margin to stay short that they won't likely be able to survive another rally. The lesson these past couple of years is how effective the banks are at using the currency market's to replentish ammo when they need to most. The underlying structure of all markets is Darwinian in nature and epitomizes disequilibrium...
It's also darn good sport!