I can buy ENTI on Scotttrade, TDA are a bunch of liars, according to them (still claiming that they don't have any certificates) I went ahead and opened an account on Scottrade yesterday afternoon, wire them the money and was able to put a buy on ENTID all in a matter of 45 minutes. Sharebuilder, where my wife and I have our retirement investments wanted $300 in fees to do a $2K buy, figure that one out. Good Luck!