EXHIBIT 99.1 Great Southern Bancorp, Inc. Reports Preliminary Third Quarter Earnings of 1.41PerDilutedCommonSharePreliminaryFinancialResultsandBusinessUpdatefortheQuarterandNineMonthsEndedSeptember30,2024SPRINGFIELD,Mo.,Oct.16,2024(GLOBENEWSWIRE)−−GreatSouthernBancorp,Inc.(NASDAQ:GSBC),theholdingcompanyforGreatSouthernBank,todayreportedthatpreliminaryearningsforthethreemonthsendedSeptember30,2024,were1.41 per diluted common share ($16.5 million net in ...