On any specific investment, the possibility of losses occurring in terms of the expected return can be characterized as investment risk. In simple terms, it is a calculation of the quantum of uncertainty while venturing for the coveted returns in line with the investor's overall expectations. It's to recognize the magnitude of unforeseen outcomes in the making. In the course of estimating an investment's prospect, the risk appears to play a crucial part. A majority of investors find reduced risk as gainful when deciding upon an investment. The less the investment risk, more will be the amount of investment. The criterion, however, is higher the scope, the stronger the return prospects.Many categories of finance-related threats constitute a financial risk, especially money transfers that involve default risk of company loans. It is also assumed that it includes only downside risk, which implies the opportunities for capital loss and ambiguity as to its nature. A portfolio's deviation, i.e., standard deviation, is treated as a risk description in the realm of modern portfolio theory.