 Shares of Colonnade Acquisition Corp. rocketed 46.2 in morning trading Tuesday to pace the NYSEs gainers, after the special purpose acquisition company SPAC, or blank-check company, announced a merger deal that will take lidar sensor maker Ouster Inc. public. Under terms of the deal, which implies an equity value for Ouster of about 1.9 billion, will provide up to 300 million in gross proceeds for Ouster. 