I found this for ya...
• Large-cap, small-cap. The "cap" here stands for capitalization, or the amount of money invested in a company. Capital can be represented either by debt or equity (ownership). Large-cap companies are capitalized with at least $5 billion, while small-cap companies are capitalized with less than $1 billion. Generally speaking, small-cap companies have much room for potential future growth, yet are more vulnerable to market downturns.
this site has a strong following.... many peeps love the fool!!! This may help define...
http://www.fool.com/boringport/2000/...port000124.htm
cute...
http://www.wallstreetcity.com/educat...iz/at_q2q1.asp
and from Morningstar........
Market Capitalization
Morningstar ties market cap to the relative movements of the market. The top 5% of the 5,000 largest domestic stocks in Morningstar's equity database are classified as large cap, the next 15% of the 5,000 are medium cap, and the remaining 80% (as well as companies that fall outside the largest 5000) are small cap. Morningstar then determines a fund's market cap by ranking the stocks in a fund's portfolio from the largest market-capitalized stock to the smallest, and then calculating the average weighted market capitalization of the stocks in the middle quintile of the portfolio. After a fund's market cap has been determined, Morningstar places the fund in the large-cap, medium-cap, or small-cap group (noted above).
hope this helps...
the P/E is a good tool to evaulate a co. the lower the better (typically)
good for you looking into this info...
one thing I have notices is that the msg boards can get pretty sloppy, but some have good info. (Just don't put any $ based on any msg board comment w/o strong research!)