Cannabis stocks surged Friday in the wake of reports that President Trump is preparing to reclassify marijuana under federal law — a long-awaited shift that investors say could loosen restrictions and revive a battered industry.Traders piled into pot firms on expectations that Trump will move cannabis from Schedule I to Schedule III under the Controlled Substances Act, a step that would treat marijuana as less dangerous and acknowledge it as acceptable for medical use.The rally marked one of the biggest sin ...