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Glossary
Definition

Loss ratio

Updated on
03
By
Salma Moumen
The loss ratio refers to the proportion of a portfolio’s investments that result in a partial or total loss of the invested capital.
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This is a metric used by investors to assess the level of risk and an investment strategy’s ability to withstand setbacks while generating overall value.

In venture capital, where investments are made in young, innovative companies, the loss ratio is a key metric. In private equity, it is also analyzed, although the loss rates observed are generally lower due to the maturity of the companies being financed.

The loss ratio highlights a fundamental reality of investing in private markets: not all investments succeed, and a portfolio’s performance often depends on the ability of its top-performing investments to offset the underperformers.

How do you calculate the loss ratio?

The calculation may vary depending on the methodologies used, but the basic principle is to measure the proportion of investments that have incurred a loss.

The simplified formula is:

Loss Ratio = Number of losing investments ÷ Total number of investments

For example:

• 100 companies funded;

• 20 investments that resulted in a capital loss.

The loss ratio is therefore:

20 ÷ 100 = 20%

Some analyses also use an approach based on the amounts invested rather than the number of transactions.

Why is the loss ratio important?

The loss ratio provides insight into the value creation dynamics of an investment strategy.

Measuring portfolio risk

A high loss rate may reflect a strategy that invests in younger, more innovative, or riskier companies.

Assess the quality of the selection

The loss ratio provides insight into investors' ability to identify companies with the best growth prospects.

Analyzing Diversification

A broadly diversified portfolio can more easily absorb certain losses thanks to the performance of its most successful investments.

Loss Ratio and Venture Capital

The loss ratio measures the proportion of investments in a portfolio that have generated a loss. This metric is widely used in venture capital and private markets to assess the risk level of an investment strategy. It underscores the fact that, in private equity, overall performance often depends on the ability of the best-performing investments to offset the less successful ones.
Investing involves the risk of capital loss.

Loss Ratio and Venture Capital

The loss ratio is particularly common in venture capital.

Investors often fund startups whose business models are not yet fully established.

In this context:

  • Some companies are experiencing strong growth;
  • Others are stagnating;
  • Some are going out of business.

It is therefore not uncommon to see a significant loss ratio in venture capital portfolios.

Overall performance generally depends on a limited number of companies capable of generating significant value creation.

Loss Ratio and Performance

In venture capital, it is not uncommon for a significant proportion of funded companies to fail to meet their initial objectives. Yet some of the best-performing funds in history have posted high loss ratios. Their success was based on a few exceptional investments capable of generating value far exceeding the losses incurred on other holdings.
Source: Kauffman Foundation, Cambridge Associates.

Loss Ratio and Private Equity

In the buyout or Growth Equity, the companies being financed are generally more mature and already have:

  • A financial history;
  • An established customer base;
  • A well-organized organization;
  • With more predictable profitability.

Private equity strategies have historically had lower loss ratios than those observed in venture capital.

This difference can be attributed in particular to the level of maturity of the selected companies and the importance of due diligence conducted prior to the investment.

Does a high loss ratio mean poor performance?

Not necessarily.

The loss ratio should always be analyzed in conjunction with other performance indicators.

Example in Venture Capital

A fund can incur several losses while still delivering excellent overall performance thanks to a few companies whose value has risen sharply.

Example in Private Equity

A fund may have a low loss ratio but still deliver only moderate returns if the companies in the portfolio generate little value.

The loss ratio alone does not measure the quality of an investment.

The Limits of the Loss Ratio

He doesn't realize the extent of the losses

Two portfolios can have the same loss ratio while experiencing very different levels of loss.

He doesn't measure the gains

The indicator focuses solely on loss-making investments and does not take into account the value created by other investments.

It depends on the strategy

Directly comparing the loss ratio of a venture capital fund with that of a buyout fund generally buyout sense, given the differences in risk between these strategies.

History of the concept

Venture Capital Development

The loss ratio has gradually established itself as a key metric for analyzing the performance of investment portfolios in innovative companies.

Professionalization of Private Equity

As private markets have grown, institutional investors have developed more sophisticated tools to measure portfolio risk and performance.

Today

The loss ratio remains a supplementary indicator used alongside the IRR, and TVPI, DPI, and other performance metrics.

FAQ

What is a good loss ratio?

There is no single level that is universally considered good or bad. The interpretation depends on the investment strategy, the sector, and the stage of development of the companies being financed.

Is the loss ratio higher in venture capital?

Yes, generally speaking. The companies we invest in are younger and carry a higher level of risk than those typically seen in buyout growth equity strategies.

Is the loss ratio sufficient for evaluating a fund?

No. It must be analyzed alongside other performance indicators to gain a comprehensive view of the portfolio's results.

Disclaimer: Investing involves the risk of capital loss. Past performance is not indicative of future results. The information presented in this article is intended solely for educational and informational purposes. It does not constitute investment advice or a recommendation to buy or sell any financial instrument.

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About the author
Salma Moumen
Chief Project Officer
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