"** purely made up by myself, have no knowledge of any actual figures. For illustrative purposes only."
Based on 2010 figures:
Assets (excluding goodwill): US$1.9bn
Annual revenue: US$870m
Annual profit: US$376m
So assets + 10 x profit gives around US$6bn. Add another US$1bn for growth in 2011 and you are in in the ball park of their market cap, although analysts believed they were over valued. Obviously not the analysts that HP used...