I found this on Wikipedia and it is worth archiving:

Market cap

Market capitalization less than $5 billion – Lynch generally avoids large, well-known companies in favor of small-cap stocks that still contain significant upside potential. Most fund managers define small-caps as companies with market capitalizations under $1 billion. Institutional investors often use market one investment criterion, requiring, for example, that a company have a market capitalization of $100 million or more to qualify as an investment. Analysts look at market capitalization in relation to book value for an indication of how investors value a company’s future prospects.

PEG ratio < 1.2

PEG ratio below 1.2 – The PEG ratio is a valuation metric that compares a company’s price-earnings ratio with its projected growth rate. Small, high-growth stocks generally trade at higher PEGs compared to the big-caps. If the PEG ratio is around 1, the company is considered ......