Equity Lines Risk

Equity risk is the risk that one's investments will depreciate because of stock market dynamics causing one to lose money.

The measure of risk used in the equity markets is typically the standard deviation of a security's price over a number of periods. The standard deviation will delineate the normal fluctuations one can expect in that particular security above and below the mean, or average. However, since most investors would not consider fluctuations above the average return as "risk", some economists prefer other means of measuring it.

Home Equity Loan

A home equity loan (HEL) is a type of loan in which the borrower uses the equity in their home as collateral. These loans are sometimes useful to help finance major home repairs, medical bills, college education, or establish a line of credit. A home equity loan creates a lien against the borrower's house, and reduces actual home equity. 

Equity trading

In finance, equity trading is the buying and selling of company stock shares. Shares in large publicly-traded companies are bought and sold through one of the major stock exchanges, such as the New York Stock Exchange, London Stock Exchange or Tokyo Stock Exchange, which serve as managed auctions for stock trades . Stock shares in smaller public companies are bought and sold in over-the-counter (OTC) markets.

Major stock exchanges have market makers who help limit price variation (volatility) by buying and selling a particular company's shares on their own behalf and also on behalf of others.