$TEUM Oppenheimer conducted “extensive due diligence” prior to initiating coverage of Pareteum six weeks ago and believes the short report is in error, Horan said in a Monday note. “Our channel checks give us strong confidence in the integrity and competence of management and the quality and satisfaction of its customer base,” the analyst said. “The company is in rapid growth mode, and we expect over 35 percent per year revenue growth on expanding margins in the next few years.”