Shares of intragastric balloon maker Obalon Therapeutics (NSDQ:OBLN) jumped as high as $10.71 today, or 568%, after the company announced a merger with ReShape Lifesciences (OTCMKTS:RSLS). The San Diego-based company’s stock eventually closed at $9.52 per share, up 491%. Obalon’s stock had closed at $1.61 yesterday. ReShape Lifesciences also saw a substantial jump in its stock price. […]