Apple stock is moving higher once again, with the company’s market value yesterday surpassing that of Dell by a factor of four to one.

Apple’s stock has crawled its way back to $180 again, on strength of excellent Q2 results and continued optimism as to the next generation iPhone, widely predicted to ship in January.

The stock price increases mean Apple’s market value now stands at $158.66 billion, comparing to Dell’s $38.97 billion. Apple first passed Dell in terms of market value on 13 January 2006.

In 1997, shortly after Steve Jobs returned to a troubled Apple, Michael Dell famously said:"What would I do… I'd shut it down and give the money back to the shareholders."