Trading in Google shares has been suspended, after the internet giant released its third-quarter results early by mistake.
Google blamed financial a printing firm for filing an early draft of the results, which had been expected after the closing bell, the BBC reports.
The company suspended trading on Nasdaq while it works to finalise the document, at which point it will release its earnings and resume trading
Third-quarter profits fell 20% on a year earlier to $US2.18 billion and was below analysts' expectations.
Net revenue rose to $11.3bn from $7.5bn, but was still below forecasts.
Shares in Google were down 9% before trading in the stock was suspended.
The slide in Google's share price took the company's market value back down below that of Microsoft, which it had overtaken earlier this month.