Liquidity – is identified in relation to a separate instrument – it is a possibility to sell a financial asset with minimal changes in price. Liquidity falls in the period of abrupt price changes after the release of important information. Usually, investors demand the highest profitability from insignificant liquidity of financial instruments. Liquidity in relation to the market is a certain level of market ability to take up significant cycling, which appeared by supply and demand, it happens when a lot of stock market speculators buy and sell at the same time the financial instrument without real price changes. Stock market in comparison with currency market is less liquid and it is not influenced so much by abrupt quotations jumps during the pressure of economic shocks and less influenced by correction back-off.