Twitter Inc reported its slowest quarterly revenue growth since going public as the company continues to face intense competition from Snap Inc's Snapchat and Facebook Inc's Instagram.
The company's shares fell as much as 10 per cent to $16.81 in premarket trading on Thursday.
Twitter said its user base increased 4 per cent to 319 million average monthly active users.
Analysts on average had expected 319.6 million monthly active users, according to market research firm FactSet StreetAccount.
Revenue rose just 1 per cent to $717.2 million, missing analysts' average estimate of $740.1 million, according to Thomson Reuters I/B/E/S. The company's