In currencies, this is the abbreviation for the Swedish Krona.

Shares are units of ownership interest in a corporation or financial asset that provide for an equal distribution in any profits, if any are declared, in the form of dividends. The two main types of shares are common shares and preferred shares. Physical paper stock certificates have been replaced with electronic recording of stock shares, just as mutual fund shares are recorded electronically.

A stock exchange or securities exchange is an exchange (or bourse) where stock brokers and traders can buy and sell shares of stock, bonds, and other securities. Stock exchanges may also provide facilities for issue and redemption of securities and other financial instruments and capital events including the payment of income and dividends. 

A stock market, equity market or share market is the aggregation of buyers and sellers (a loose network of economic transactions, not a physical facility or discrete entity) of stocks (also called shares), which represent ownership claims on businesses; these may include securitieslisted on a public stock exchange as well as those only traded privately. 

A stock trader is an investor in the financial markets. Stock traders can be individuals or professionals trading on behalf of a financial company. Stock traders participate in the financial markets in various ways.

A stock is a type of security that signifies ownership in a corporation and represents a claim on part of the corporation's assets and earnings. Also known as a “share” or “equity”.