The idea of cloud computing is not a new one, it has been developed and discussed for many years. Cloud computing is a model which allows to get access to the network upon request from the set of adjustable computing services, such as infrastructure, applications and storages. Cloud services and data storage products allow their users to store and share any type of document and file from any device connected to Internet. There are several types of cloud services, which can be subdivided into: SaaS (Software as a Service), PaaS (Platform as a Service), IaaS (Infrastructure as a Service). Besides, there are several deployment models, such as public, residential, hybrid or community cloud. Cloud computing models are based on modern process paradigm, which offers new alternatives to the companies of various ranges for implementation of innovative business models. With the help of these new business models small companies will be able to use cloud computing platforms and to increase gradually their computation capacities and data storage capacities depending on the requirements in real time mode, which creates a unique opportunity for market competition. Keywords— cloud computing, IaaS, OpenStack, PaaS, SaaS.

Since early 2015, the key rate of the Central Bank of the Russian Federation has been steadily decreasing. At the beginning of 2021, it amounted to 4.25% per annum, which was an unprecedented low value for the Russian economy. This conditioned a steep deposit rate fall and a significant growth in real estate prices. In the current economic situation, many private investors come to the stock market, which transforms savings into investments in the real sector of the economy. The article considers the fundamental and technical analysis of stocks. The authors have conducted a comparative analysis of shares from one industry as exemplified by PAO "Severstal", PAO "MMK" and PAO "NLMK", i.e. the leaders of the Russian ferrous metallurgy. The technical analysis of stocks is carried out on daily timeframes in the period from August 28, 2020 to March 5, 2021 using the following indicators: moving average convergence divergence (MACD), the MACD histogram and the RSI oscillator. The fundamental analysis of stocks is performed using the bottom-up method through multiples: P/E, P/S, P/BV, EV/EBITDA and EPS. The authors have concluded that it is inexpedient to invest in the shares of these companies at the current level of their capitalization.