Guys -- I tried to enter a BUY order via the order system on E-trade for NGUX. It sat there and sat there, even though my price was at the ask. I cancelled the order, went over to my portfolio page, clicked on BUY from there on NUGX and was able to buy shares.
So if you key in NUGX, then try to buy, the system does not recognize it. However if you go to the line item on your portfolio and click on BUY (or SELL if you want to sell), it will work.
I noticed when you do that, the stock is not just NUGX, but NUGX NUGENEREX IMMUNO ONCOLOGY INC COM. NUGX alone returns no results.
It's strange, but it's a workaround. Not sure if other brokers are working this way or not.