Apple’s shares fell to $48.688 on Monday after reports by International Data Corporation (IDC) and the Gartner Group’s Dataquest showed a slow down in US PC sales.

Dataquest figures show global PC shipments are up 18 per cent from the same quarter last year. IDC shows 14.5 per cent growth worldwide for the same period. These figures contrast with those in the US, where Dataquest reports an 11.5 per cent growth and IDC figures show 7.2 per cent. The US accounts for 37 per cent of the world PC market.

IDC analyst, Bruce Stephen, says: "The US consumer market has been on fire for the last year and a half, and is showing signs of slowing down." In response, Nasdaq shares fell nearly three per cent on Monday, as investors considered the news.

Apple stock rallied once again yesterday, closing at $50.063, after a week in which its values reached a close of business high of $55.125.