Securities cashback forex forex trading site is a very important issue in the development of the modern economy, in the forextradingbrokerwebsite investment market, we encounter a variety of risks, including foreign exchange risk, interest rate risk, credit risk, liquidity risk, securities market price risk, etc. In todays rapid economic growth, the national income increased significantly, more forextradingwebsiteonline more funds continue to inject into the securities market Not only a variety of enterprises to invest in securities, more and more people also began to get involved in the securities market, to buy a variety of stocks, bonds and so on in the concept of investment continues to strengthen and financial mechanism is becoming more and more perfect today, speculation and other words seem to become very popular, but securities investment is really that can get rich quickly? High returns are often accompanied by high risk, this is the law of economics, securities investment is also the same when we see the real life of the wealth accumulated over the years by the securities investment risk swept away, we will feel alarmed, how to reasonably analyze, calmly face the real life securities investment risk? In this paper, we analyze the various attributes of these risks from the perspective of mathematics and securities investment, and use the knowledge of statistics and operations research to manage risks. I will introduce the measurement and prediction of securities risk, which involves a lot of mathematical and statistical knowledge and several mathematical models. I will also introduce some principles of selection and the application of various methods to achieve the maximum effect of risk management. Further international integration, securities varieties more and more abundant, we must find more suitable for the healthy development of Chinas securities industry risk prevention research methods to strengthen securities companies and a variety of investment companies in the internal risk control, for the majority of investment to establish a good investment environment need to point out that securities risk prevention research is a very large subject, from a microscopic point of view, the securities risk prevention research The purpose is to reduce or avoid all kinds of possible losses, in order to survive and develop in an increasingly volatile financial environment From a macro perspective, the purpose is to prevent the occurrence of financial crises This paper focuses on the microscopic discussion In todays rapid economic growth, the national income has increased significantly, more and more funds are constantly injected into the securities market not only a variety of enterprises to invest in securities, more and more The people also began to get involved in the securities market, to buy a variety of stocks, bonds and so on in the concept of investment continues to strengthen and financial mechanism is becoming more and more perfect today, speculation and other words seem to become very popular, but securities investment is really that can get rich quickly? High returns are often accompanied by high risk, this is the law of economics, securities investment is also the same when we see the real life of the wealth accumulated over the years by the securities investment risk swept away, we will feel alarmed, how to reasonably analyze, calmly face the real life securities investment risk? The uncertainty of the future determines that human beings are exposed to various risks in all socio-economic activities. In general, risk is objective, unavoidable, and under certain conditions there are certain regularities, therefore, the risk can only be reduced to a minimum degree, but it is impossible to eliminate it completely, which requires securities investors to actively recognize risk, actively manage risk, effectively control risk, reduce risk to a minimum degree, in order to ensure that in securities investment to minimize losses due to In the real economic society, everyone knows that securities investment is accompanied by risk, but still try to profit from this not only interest-driven reasons, the more important point is that most investors seem to be conducive to believe that they can manage this risk, they can control the risk at a very low level through rational analysis. Is this really the case? 1 Overview of risk 1.1 The concept of risk Risk in securities investment refers to the possibility of economic loss due to incomplete or uncertain information about the future pull This is summarized in three cases: ① securities investment risk may bring people direct losses ② securities investment risk may bring people relative losses ③ securities investment risk may bring people potential losses The risk of securities investment has the following characteristics Features: First, the objectivity and universality of the existence of risk as the uncertainty of the occurrence of losses, portfolio investment risk is an objective reality that is not transferred by the will of the securities investment subject and exceeds the subjective consciousness of the securities investment subject, and throughout the period of the securities investment project, the risk is ubiquitous and timeless This explains why although many securities investment subjects try to recognize and control risk, but until now This explains why, although many securities investment subjects have tried to recognize and control risks, they can only change the conditions for the existence and occurrence of risks within a limited space and time, reduce the frequency of their occurrence, and reduce the degree of losses, but cannot and will not be able to completely eliminate risks. However, the observation and statistical analysis of a large number of securities data reveals a clear pattern of movement, which makes it possible for the securities investment subject to calculate the probability of occurrence of risk and the degree of loss by using probabilistic statistical methods and other modern risk analysis methods, and is also the basis for risk management of the securities investment subject. Third, the variability of risk, which refers to the entire process of the securities investment project, various This refers to the qualitative and quantitative changes in risk, as the securities investment project proceeds, some risks will be controlled, some risks will occur and be dealt with, while new risks may arise at each stage of the project, especially in large projects, due to the many risk factors, the variability of risk is more obvious Fourth, the diversity and multi-level risk securities investment large projects are long, large scale, involving a wide range, the number of risk factors and a variety of risk factors. The number and variety of risk factors lead to a variety of risks faced by the securities investment in large projects during the whole life cycle, and the intricate relationship between a large number of risk factors, and the cross influence between the risk factors and external factors makes the risk show multi-level, which is one of the main characteristics of the risk in the securities investment in large projects Uncertainty in securities investment includes external uncertainty and internal Uncertainty 1.1.1 Extrinsic Uncertainty Extrinsic uncertainty comes from outside the economic system and is the result of random, contingent changes and unpredictable trends in the process of economic operation, such as macroeconomic trends, market demand and supply, political situation, technology and resources, etc. Meanwhile, extrinsic uncertainty also includes the impact of uncertainty in foreign financial markets. Therefore, the risk caused by external uncertainty becomes systemic risk. Systemic risk cannot be eliminated through investment diversification, but can only be transferred through certain measures. For example, changes in the management level, product marketing, credit quality, production scale, etc. of an enterprise are related to its ability to perform, and even internal personnel appointments and the health condition of the person in charge can affect the price of its stocks and bonds. The following types of risks: interest rate risk, exchange rate risk, market risk, enterprise risk, purchasing power risk, and correlation risk 1.2.1 Interest rate risk Interest rate risk refers to the possibility of losses brought about by the market interest rate to the securities investment. Specifically, when interest rates increase, the yield level of newly issued bonds will be higher than that of listed bonds, and thus the price of listed bonds will fall to match the new interest rate. Conversely, when interest rates fall, the price of listed bonds will rise. For stocks, changes in interest rates will change peoples expectations of returns and affect supply and demand in the stock market, thus causing stock prices to fluctuate. In addition, changes in interest rates are also a barometer of the national economic policy When the country wants to implement an easy monetary policy, it usually lowers interest rates to achieve the purpose of reducing corporate financing costs Therefore, I believe that paying attention to the interpretation of national policies in stock investment is conducive to improving our ability to choose stock varieties for investment and reducing the damage of interest rate risk to us 1.2.2 Exchange Rate Risk Exchange rate risk is the risk that The uncertainty of the losses brought to the actor by the fluctuation of the exchange rate In examining the exchange rate risk, it is important to study it in terms of three exposures, which refer to transaction exposure, translation exposure and economic exposure Transaction exposure refers to the possibility of loss of an economic entitys expected cash flow, as a result of being affected by the fluctuation of the exchange rate For example, in foreign exchange transactions, if the exchange rate of a currency falls, long positions holding this currency will suffer losses, and vice versa Translation exposure is the uncertainty in the book value of the enterprise caused by changes in exchange rates for various accounts in foreign currencies in the accounting accounts of foreign-related enterprises For example, when the London branch of Bank of China attributes the earnings of its operations to the consolidated accounts of the head office of the Bank of China, its value expressed in Renminbi is necessarily affected by changes in the exchange rate between pounds sterling and Renminbi Economic exposure is the unforeseen changes
