Jumbo Interactive Limited revised earnings guidance for the half year ended December 31, 2017. For the half year, the company now expects revenue to be about AUD 19.2 million against previous guidance of AUD 18.1 million to AUD 18.5 million, NPBT of about AUD 7.3 million against previous guidance of AUD 6.3 million to AUD 6.6 million, income tax expense to be about AUD 2.3 million against previous guidance of AUD 2.0 million to AUD 2.1 million, NPAT continuing operations of about AUD 5.0 million against previous guidance of AUD 4.3 million to AUD 4.5 million and NPAT attributable to members of company of about AUD 5.0 million against previous guidance of AUD 4.3 million to AUD 4.5 million.