 NETSCOUT SYSTEMS, INC. NASDAQ: NTCT, a leading provider of service assurance, security, and business analytics, today announced a business update, preliminary financial results for its fiscal year ended March 31, 2020, and the date for its fourth quarter and fiscal year end 2020 earnings call. The preliminary results announced today are subject to change based on the completion of the Companys quarter and year-end review processes and audit. 