I had day traded that ticker a few months back - Did not follow it after that - It has a very low float so I'd be a little cautious when trying to swing trade it.
HALO is becoming expensive - It wont be as good for trading as it used to be - So I found cheaper alternatives - XOMA (found and posted in the $4 range, may have PMed you, dont remember now) and IDRA (found recently).
You could also look at PGNX - I found it but haven't done any research on it, so can't say much.
ACAD is an older find of mine - At these prices, its not a good play to trade - One can make more in the ones mentioned above.
Leme know of any other tickers you find - Not just Bio, I am open to any sector.
All my iHub posts are just my opinion. It is not a recommendation to buy or sell a stock. Due to possible human error, I can not guarantee the accuracy of the posted information. Do your own Due Diligence before investing.