Idiosyncratic Risk

Idiosyncratic risk refers to specific risks that affect individual assets or groups, like single stocks or those in a particular industry. It's called "unsystematic risk" because it only impacts certain stocks, not the entire market.
What is Idiosyncratic Risk?
3 min
31-January-2025

Idiosyncratic risk, also called specific or unsystematic risk, refers to the risk linked to a particular company, industry, or asset class. Unlike broader market risks, this type of risk affects only a specific investment rather than the entire financial market. For example, an investor in a mining company may face idiosyncratic risk if the company discovers that the mining site being explored has little or no value. In such a case, the company’s performance may decline, while the wider market remains unaffected.

Before investing in financial markets or non-financial assets, it is important to understand two key factors: risk and return. Every investment carries some level of risk, and these risks can generally be divided into two categories — systematic and unsystematic. Systematic risk impacts all assets within a market or asset class and is caused by broader economic or market conditions. In contrast, unsystematic or idiosyncratic risk is unique to a specific asset, company, or sector. Since it is limited to individual investments, this type of risk can often be reduced through proper diversification of an investment portfolio.


What is idiosyncratic risk?
 

Idiosyncratic risk refers to the financial risk linked to a particular asset, company, or investment. This type of risk is unique to the specific investment and does not arise from overall market movements or economic conditions. Factors such as company management decisions, operational issues, legal matters, or product performance can all contribute to idiosyncratic risk. Because it affects only a single investment or a small group of related investments, it can often be reduced through diversification. For example, investing in different industries and asset classes can help lower the impact of losses caused by one underperforming investment. Idiosyncratic risk is different from systematic risk, which affects the entire market and cannot be avoided through diversification. Due to this distinction, idiosyncratic risk is also commonly called unsystematic risk. Understanding this type of risk is important for investors when evaluating investment opportunities and managing their portfolios effectively.


 

Key takeaways


  • Idiosyncratic risk refers to risks that affect a particular company, security, or a small group of assets rather than the entire market.
  • It is also called specific risk or unsystematic risk because it is unique to an individual investment.
  • These risks may arise from factors such as poor management decisions, operational issues, legal problems, or industry-related challenges.
  • Some securities naturally carry higher idiosyncratic risk compared to others, depending on their business model and market position.
  • Investors can reduce this type of risk by diversifying their portfolio across different industries, companies, and asset classes.
  • Diversification helps limit the impact of poor performance from a single investment on the overall portfolio.
  • Idiosyncratic risk is different from systematic risk, which affects the wider financial market or economy as a whole.
  • Examples of systematic risk include inflation, interest rate changes, economic downturns, and global financial crises.


Example of idiosyncratic risk

One common example of idiosyncratic risk is how the decisions taken by a company’s management could affect its stock price. For instance, say a company has recently relieved some of its key management personnel. This could cause a significant drop in the company’s stock price because it may cause concerns about the future growth of the entity. This type of risk is not related to the broad market. Instead, it is specific and unique to the company and its current issues.

Causes of idiosyncratic risk

This kind of risk may be triggered by different factors, depending on the type of asset or investment you’re looking at. Some common causes of idiosyncratic risk in different investments include:

  • Company-specific events like management changes or mergers and acquisitions
  • Industry-specific factors like regulatory changes or technological developments
  • The financial health of a company
  • The decisions taken by a company’s management
  • Operational issues in a company, like supply chain disruptions or production delays

Types of idiosyncratic or unsystematic risk

Idiosyncratic risk can be categorised as follows:

  • Operational risk: This includes risk factors associated with a company’s operational capabilities, which are all unique to the entity and not affected by broad market sentiment.
  • Business risk: Business risk is a type of unsystematic risk that stems from any competition that a company faces due to a new product or entrant in the market sector or industry.
  • Regulatory risk: This includes the risk that any new regulatory policies or changes to existing regulations may adversely impact a company’s operational capabilities or business strategy.
  • Financial risk: This type of idiosyncratic risk stems from financial aspects of a company, such as high debt levels, consistent losses, poor cash flow management or even the risk of insolvency.

How to measure idiosyncratic risk?

You can measure the idiosyncratic risk of a company’s stock or any other asset using the following metrics and strategies:

  • Variance differences: Idiosyncratic risk can be measured as the variance of a stock over and above what can be attributed to the market or systematic risk.
  • Standard deviation: This tool measures how much an asset’s returns deviate from its mean returns. A higher standard deviation indicates greater idiosyncratic risk.
  • Correlation analysis: You can also examine the correlation coefficient to estimate how much an asset’s returns move w.r.t other assets or indices.
  • Tracking error: This metric measures how consistent an investment’s returns are when compared to another benchmark. A higher error could indicate a higher idiosyncratic risk.

 

How to mitigate idiosyncratic risk?


Idiosyncratic risk can be reduced through portfolio diversification. By investing in a wide range of stocks across different companies and industries, the effect of poor performance from a single investment on your overall portfolio becomes much smaller.

One of the most effective ways to build a diversified portfolio is by investing in a low-cost index fund that follows a broad market index, such as the S&P 500. These funds provide exposure to many companies at once, helping investors spread risk more efficiently.

In addition, index funds are usually very affordable, with annual charges often as low as 0.10 percent or even less. This means an investor would pay under Rs. 830 per year for every Rs. 8,30,000 invested in the fund. Because of their low cost, simplicity, and diversification benefits, index funds are considered a practical long-term investment option for many investors.


How to reduce idiosyncratic risk?

To mitigate unsystematic risk as much as possible, you need to take certain measures. They include the following:

  • Diversification:
    By spreading your investments across different asset classes, industries and even geographical regions, you can reduce asset-specific risk significantly.
  • Hedging:
    Hedging can also help reduce unsystematic risk because it allows you to take an opposite position in the same or a related asset, thereby offsetting potential losses.
  • Risk analysis:
    Additionally, to minimise this type of risk, you must first be aware of how much idiosyncratic risk you are taking. A thorough risk analysis can help you with this.

Idiosyncratic risk and mutual fund performance

This type of risk plays a significant role in understanding mutual fund performance. When you are evaluating the suitability of a mutual fund for your portfolio, you must consider this risk in addition to other factors like market risk.

A high level of idiosyncratic risk may be a sign that the fund’s returns are heavily influenced by asset-specific factors rather than broad market aspects. You can use metrics like alpha (which measures the excess returns) and tracking error (which is the deviation from the benchmark) to assess how well a scheme is handling its idiosyncratic risk.

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Idiosyncratic risk vs systematic risk

Now that you know what idiosyncratic risk is and how you can reduce it, check out how it differs from market or systematic risk.

ParticularsIdiosyncratic riskSystematic risk
NatureSpecific to individual assets or investmentsApplicable to the entire market or a broad market segment
CausesCompany-specific events or industry-related factorsEconomic factors like interest rates, GDP etc.
ImpactAffects a single asset or a small group of assetsAffects a wider range of assets
DiversificationCan be minimised through diversificationDiversification does not have much of an impact on this risk
MeasurementUnderstood using metrics like alpha or the tracking errorMeasured using metrics like beta or market volatility
MitigationDiversification and hedging can help mitigate this riskAsset allocation techniques and risk management strategies can help reduce this risk
Examples of risk factorsCompany management changes or lawsuitsInterest rate fluctuations or economic recessions


 

Conclusion

This sums up our guide on idiosyncratic or unsystematic risk and how you can manage it effectively. This concept is particularly relevant to mutual fund schemes as they involve a mix of different assets, each with distinct risks. The level of systematic and idiosyncratic risk will help you assess if a mutual fund scheme aligns with your risk tolerance levels.

To compare mutual funds of different types and make an informed choice, check out the 1,000+ options available on the Bajaj Finserv Mutual Fund Platform. You can identify the funds that could help you meet your financial goals without exceeding your risk tolerance. Then, you can start a SIP or make a lump sum investment in those funds easily online through this platform.

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Frequently asked questions

What is the meaning of idiosyncratic risk?

The definition of idiosyncratic risk is the same as unsystematic risk. It is the risk that is specific or unique to each investment or security.

What is an example of idiosyncratic risk?

Some examples of the idiosyncratic risks associated with a stock include the company’s financial position, its management decisions and internal operational policies.

How is idiosyncratic risk different from systematic risk?

Unlike systematic risk, which is common to all investments within an asset class, idiosyncratic or unsystematic risk is unique to each specific investment.

Can idiosyncratic risk be minimised?

While this type of risk cannot be eliminated, you can reduce it by performing due diligence and diversifying your portfolio.

Is idiosyncratic risk represented using alpha?

While this risk is not exactly represented using alpha, both these concepts are related as they refer to the performance or risks of a specific investment rather than the broad market.

Is it possible to reduce idiosyncratic risk through diversification?

Yes, diversification is an effective way to attempt to reduce the idiosyncratic risk in any one asset or investment.

What is the meaning of idiosyncratic risk?

Idiosyncratic risk refers to the risk that is unique to a specific company or asset, rather than the overall market. It arises from internal factors such as management decisions, financial issues, or operational problems. For example, a company losing a major client or facing a legal issue can create this risk. Unlike market risk, it can be reduced through diversification by investing in different companies or sectors.

How is idiosyncratic risk different from systematic risk?

Idiosyncratic risk refers to risks specific to a particular company or industry, such as poor management decisions or product failure. It can be reduced through diversification of investments. In contrast, systematic risk affects the entire market, such as inflation, interest rate changes, or economic recessions. This type of risk cannot be avoided even with diversification. For example, a fall in the overall market can reduce the value of investments across all sectors, including those worth Rs. amounts.

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Bajaj Finance Limited (“BFL”) is an NBFC offering loans, deposits and third-party wealth management products.

The information contained in this article is for general informational purposes only and does not constitute any financial advice. The content herein has been prepared by BFL on the basis of publicly available information, internal sources and other third-party sources believed to be reliable. However, BFL cannot guarantee the accuracy of such information, assure its completeness, or warrant such information will not be changed. 

This information should not be relied upon as the sole basis for any investment decisions. Hence, User is advised to independently exercise diligence by verifying complete information, including by consulting independent financial experts, if any, and the investor shall be the sole owner of the decision taken, if any, about suitability of the same.