what is market value of stock
share image by Patrizier-Design from Fotolia.com. The market value of stock is the price at which a share of stock trades in the public market. Stocks can be traded on a stock exchange, such as the New York Stock Exchange, or over the counter through a network of dealers. The market value of stock measures the collective expectations of investors about a companyâs future performance and is watched closely by investors, analysts and companies.