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Rentabilidad ajustada al riesgo

Ramos Capital Group (RCG) compara muchos factores de riesgo cuando analiza si vale la pena invertir en un negocio. Uno de los aspectos financieros que los inversores podrían considerar es el rendimiento ajustado al riesgo de su negocio. Entonces, ¿qué es una rentabilidad ajustada al riesgo?

What Is a Risk-Adjusted Return?

A risk-adjusted return is when you or an investor (e.g., angel investors, small business) measures the amount of risk involved in an investment’s return. With a risk-adjusted return, you can also compare risk to your potential reward.

Basically, a risk-adjusted return is how much return your investment makes relative to the amount of risk the investment has.

Generally, risk-adjusted returns are represented as numbers or ratings. In most cases, a risk-adjusted return applies to investment funds, individual securities, and portfolios.

Risk-adjusted returns measure certain factors including:

  1. Risk management

  2. How well the risk performs or pays off

Risk-adjusted returns allow RCG to analyze high-risk versus low-risk investments.  Typically, the lower the risk, the better the risk-adjusted return.


Calculate risk-adjusted return

There are a few ways you can calculate risk-adjusted return by using ratios and formulas. Calculations can be more complicated than others. While comparing investments, many investors look at multiple risk measures and compare results.

To simplify the process, you can measure risk by using either the Sharpe ratio or the Treynor ratio.


Sharpe ratio

The Share ratio was developed to help investors understand the return of an investment by comparing it to its risk. It is the most popular risk-measuring method. Essentially, the ratio calculates the average return earned (e.g., similar risks).

To calculate the Sharpe ratio, subtract the risk-free rate from the return of the investment. The risk-free rate is the rate of return of an investment with no risk.

Then, divide that number by the standard deviation of the investment’s excess return. The standard deviation compares an investment’s returns to its average return.

Sharpe ratio = Return of the investment – Risk-free rate / Standard deviation


Sharpe ratio example

All this ratio and formula talk can get a little confusing. So, let’s take a look at an example of using the Sharpe ratio.

Say you want to compare two investments, Investment A and B. Investment A returned 20% over the past year and had a standard deviation of 7%. Investment B returned 15% and had a standard deviation of 4%. The risk-free rate was 3% for both investments. The Sharpe ratios for both investments would look like this:

Investment A: (20%–3%) / 7% = 2.43
Investment B: (15% – 3%) / 4% = 3

Investment A’s risk-adjusted return is 2.43 while Investment B’s is 3. Even though Investment A has a higher return, Investment B has a higher risk-adjusted return.

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