Market capitalization is an important data point for investors to keep an eye on, for various reasons. The most basic reason is that it gives a true comparison of the value attributed by the stock market to a given company's stock.
Expedia Inc (NASDAQ:EXPE) rallied 6.35% to an all-time high on Friday after reporting that Q2 EPS excluding items rose 61% from the year-earlier quarter to $1.03, with revenue climbing 24% to $1.495 billion.
... capitalization (factoring in those share counts) creates a true �apples-to-apples� comparison of the value of two stocks. In the case of Salix Pharmaceuticals Ltd (NASD: SLXP), the market cap is now $10.04B, versus Expedia Inc (NASD: EXPE) at $10.00B.