 Shares of medical technology company Obalon Therapeutics exploded 568 to as high as 10.71 on Wednesday following a merger announcement with weight-loss company ReShape Lifesciences. Obalons stock reached an intraday high of 10.77 around 2:00 pm ET Wednesday, a 568 upside from Tuesdays closing price of 1.61. Trading volume of the stock soared to 370 million shares, compared to the average volume of 4.2 million shares traded per day. Meanwhile, ReShape Lifesciences grew as much as 250 to 14 on Wednesday. 