The paper shows the methodical base of short-term investment in the stock market. The produced algorithm helps the potential investor to execute short-term purchase transactions of in the stock market. For the selection of the best company stocks authors offer to use the comparative basic analysis of the company valuing 17 parameters in 5 grade system, which are obtained from profit or loses and balance items, in the end obtaining company’s average rate. Authors of the paper offer the short-term investors to carry out a fractal technical analysis based on the average rates that are obtained from the highest values. In fractal technical analysis authors have shown places in prices graph at certain values of tools, where short-term investors should proceed with purchase transactions.