Twitter shares plunge on lacklustre fourth quarter

Twitter shares plunged by nearly 12% yesterday after the social media giant reported a yearly increase in active users but lower advertising revenue.

The news disappointed investors with its failure so far to translate fans such as US president Donald Trump into more dollars.

Advertising revenue in the fourth quarter declined 0.5% to $638m (€598m), Twitter said, and the company said that advertising revenue growth would continue to lag user growth during 2017.