Insperity (NSP) reported a Q4 adjusted loss of $0.60 per diluted share, swinging from earnings of $0.05 a year earlier.
Analysts polled by FactSet expected a loss of $0.47.
Revenue for the three months ended Dec. 31 was $1.67 billion, up from $1.61 billion a year earlier.
Analysts surveyed by FactSet expected $1.68 billion.
The company expects Q1 adjusted EPS of $1.03 to $1.50. Four analysts project $1.69.
The company expects full-year adjusted EPS of $1.69 to $2.72. Analysts project $2.44.
Insperity shares fell 2% in after-hours trading after dropping 8.3% in the regular session.