http://online.wsj.com/article/SB10001424127887324432004578302461873792762.html They are trading super leveraged products, have massively deep pockets, and can keep positions for months. They also can get phone calls from politicians, etc... that can legally say, "yeah, short our currency, that makes sense in the long-term." So, why do retail traders watch the Yen go from 79 to 79.10 and try to short it all day, because it moved "too much". LOL Listen up traders......today.......pick on commodity. bet big. or go home. oh wait, you are probably already home.