Blood on the bourse

A bad day, so far, for American tech shares.

The sector has slipped into the red, led by declines in Google after Barron’s, the business magazine, said the stock could see a massive 50 per cent fall in value. Google fell 4.9 per cent to $344.85 on suggestions it could fall if it faces mounting competition or fraud by users of its ad-buying system.

The search giant wasn't alone in feeling off-colour. Microsoft traded lower by 0.5 per cent to $26.55, Apple Computer fell 2.8 per cent to $65.43.

For more on the latest exchange action, visit Bryce Elder's market report.