 Shares of Hellbiz Inc. HLBZ, 136.39 skyrocketed 143.3 toward a three-month high on massive volume in morning trading Friday, after the New York-based e-scooters and e-bicycles provider said it was evaluating measures to address alleged illegal short selling, or bearish bets, on its common stock. Trading volume exploded to 216.9 million shares, to make the stock the most actively traded on major U.S. exchanges. 