BUZZ-Circassia: Stifel raises to buy
** Drug developer Circassia (Stuttgart: 23863607.SG - news) up 8.5% after Stifel raises to buy from hold (lifts TP to 150p v 99p)
** Broker cites acquisition of US commercial rights to two COPD products from AstraZeneca (NYSE: AZN - news) for up to $230m ; sees strong strategic and financial rationale behind the deal
** 3 of 6 brokerages rate the stock "buy" or higher, and 3 "hold"; median PT 130p
** Stock best performer on FTSE All Share index
** Up to Friday's close the stock has fallen 65 pct in last 12 months