Guaranty Federal Bancshares, Inc. announced preliminary earnings results for the fourth quarter and full year ended December 31, 2018. For the quarter, the company reported net interest income of $8,585,000 compared to $5,815,000 a year ago. Net income was $2,385,000 compared to $419,000 a year ago. Net income per common share-basic was $0.54 compared to $0.10 a year ago. Net income per common share-diluted was $0.53 compared to $0.09 a year ago. For the full year, the company reported net interest income of $33,318,000 compared to $23,354,000 a year ago. Net income was $7,332,000 compared to $5,158,000 a year ago. Net income per common share-basic was $1.66 compared to $1.18 a year ago. Net income per common share-diluted was $1.64 compared to $1.16 a year ago.