The share market has reversed after its longest run of gains in nine years.

A surprise contraction in US economic growth spooked investors on Wall Street, and Australian investors followed suit.The All Ordinaries index lost 0.4 per cent to close at 4,901 while the ASX 200 lost the same amount, to 4,879.The retail sector was in retreat as investors absorbed the latest quarterly sales from the supermarket chains.Food and liquor sales at Woolworths supermarkets reached $10.3 billion in the final three months of last year, with sales up 2.5 per cent excluding those at new stores.Its shares fell 1.3 per cent to $31.24.