Daniel Eran Dilger:

At $143.4 billion, Apple’s market capitalization is now higher than HP ($100.2B) and Dell ($27.3B) combined. Market cap is a company’s outstanding shares multiplied by the market-determined price per share.

Based on figures for PC units shipped in Q2 2009, Dell and HP are the top two PC makers, with just over 50% combined market share in the US, compared to figures of around 8% for Apple, with Gartner reporting slightly higher numbers for Apple and IDC reporting slightly lower.

Most impressive.