Definition of mosquito for English Language Learners. : a small flying insect that bites the skin of people and animals and sucks their blood.
What it is: Small-cap stock refers to a company with a market capitalization (calculated by taking a firm's current share price and multiplying that figure by the total number of shares outstanding) near the low end of the publicly traded spectrum.
Large cap (sometimes big cap) refers to a company with a market capitalization value of more than $5 billion. Large cap is a shortened version of the term large market capitalization.. Market capitalization is calculated by multiplying the number of a company's shares outstanding by its stock price per share.