 MINNEAPOLIS, April 15, 2021 GLOBE NEWSWIRE -- Clearfield, Inc. NASDAQ: CLFD, the specialist in fiber management for communication service providers, will hold a conference call on Thursday, April 22, 2021 at 5:00 p.m. Eastern time 4:00 p.m. Central time to discuss its financial results for the fiscal second quarter ended March 31, 2021. 