I don't know. I've just been watching it since Wahz mentioned it a week or so ago. Some of the China stocks are flying today. Edit: ACO may be a good nano play. They now hold 37 patents. <A HREF="http://biz.yahoo.com/ibd/040113/newamer_1.html" target="_new">http://biz.yahoo.com/ibd/040113/newamer_1.html</A>