Obalon Therapeutics skyrockets 568% after announcing merger with weight-loss company ReShape Lifesciences

Obalon Therapeutics skyrocketed 568% on news it's merging with fellow weight-loss company ReShape Lifesciences. Trading volume of the stock soared to 370 million shares, higher than the stock's average 4.2 million. The two companies will combine their minimally invasive weight-loss technologies. Watch Obalon Therapeutics trade live here. Shares of medical...