Brighthouse Financial (BHF) shares soared 6.2% in the last trading session to close at $50.27. The move was backed by solid volume with far more shares changing hands than in a normal session. This compares to the stock's 18.5% loss over the past four weeks.Brighthouse Financial is reportedly to be acquired. Per media reports an investment firm Aquarian Holdings is close to buying the life insurer. This news likely have fueled price appreciation for the stock.  Brighthouse is also revamping its life insuran ...