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Risk

Often defined as the standard deviation of the return on total investment. Degree of uncertainty of return on an asset. In context of asset pricing theory. See: Systematic risk.

Risk

The uncertainty associated with any investment. That is, risk is the possibility that the actual return on an investment will be different from its expected return. A vitally important concept in finance is the idea that an investment that carries a higher risk has the potential of a higher return. For example, a zero-risk investment, such as a U.S. Treasury security, has a low rate of return, while a stock in a start-up has the potential to make an investor very wealthy, but also the potential to lose one's entire investment. Certain types of risk are easier to quantify than others. To the extent that risk is quantifiable, it is generally calculated as the standard deviation on an investment's average return.

risk

The variability of returns from an investment. The greater the variability (in dividend fluctuation or security price, for example), the greater the risk. Because investors are generally averse to risk, investments with greater inherent risk must promise higher expected yields.

Risk.

Risk is the possibility you'll lose money if an investment you make provides a disappointing return. All investments carry a certain level of risk, since investment return is not guaranteed.

According to modern investment theory, the greater the risk you take in making an investment, the greater your return has the potential to be if the investment succeeds.

For example, investing in a startup company carries substantial risk, since there is no guarantee that it will be profitable. But if it is, you're in a position to realize a greater gain than if you had invested a similar amount in an already established company.

As a rule of thumb, if you are unwilling to take at least some investment risk, you are likely to limit your investment return.

risk

see UNCERTAINTY AND RISK.

risk

Uncertainty regarding the possibility of loss.

References in periodicals archive ?
Prohibitive risk is determined by the clinical judgment of a heart team due to the presence of one or more surgical risk factors.
The committee was informed by recent clinical trial data--Everest IL Everest II High Risk, and Realism--that reportedly showed positive and consistent results for Mitraclip in the treatment of high surgical risk patients.
Based on his findings, he concluded that global endometrial ablation "should be considered a first-line therapy for women with menorrhagia and high anesthetic and surgical risk.
While a cesarean section carries some surgical risk, this study found about the same, low incidence of death among mothers in the two groups.
This trial involving high surgical risk patients represents another major step in the advancement of carotid stenting as a therapeutic alternative for patients with carotid occlusive disease," said Sriram Iyer, M.
Deterioration of the twins' medical condition, as well as their own perception of a worsening of the lifestyle imposed by their deformity, were not reversible or approachable by any means other than taking this surgical risk.
4 cm in diameter did not improve the survival rate of patients with low surgical risk.
These studies have shown that perioperative surgical risk rivals late stroke risk reduction in determining the value of carotid endarterectomy.
Considered at worst a moderate surgical risk, Bombeck died of complications following a kidney transplant performed April 3 in San Francisco.
This data compares favorably to other reports of CAS in a high-surgical risk population and is similar to results reported in the CREST trial comparing CAS to surgery in a non-high surgical risk population.
The ENROUTE Transcarotid Stent was granted Premarket Approval (PMA) from the United States Food & Drug Administration (FDA) in May of 2015 based in part on data collected from a subset (52) of 141 High Surgical Risk patients in the ROADSTER study who were treated with the Cordis PRECISE PRO RX Stent System and the ENROUTE Transcarotid NPS.