 SPRINGFIELD, Mo., Sept. 01, 2021 GLOBE NEWSWIRE -- Great Southern Bancorp, Inc. NASDAQ:GSBC, the holding company for Great Southern Bank, expects to report third quarter 2021 preliminary earnings after the market closes on Wednesday, October 20, 2021, and host a conference call on Thursday, October 21, 2021, at 2:00 p.m. Central Time 3:00 p.m. Eastern Time. 