How to Calculate a Company's Market Value: 3 Valuation Methods

Given that over 70% of small and medium-sized enterprises in Vietnam have never undergone a professional valuation before seeking investment or transfer, understanding how to calculate the market value of a business is no longer an option – but a mandatory requirement if you want to protect your interests.

Whether you are preparing to raise capital, sell your company, or simply want to know "how much your business is worth," correctly determining the market value of your business will help you avoid underselling years of hard work – or investing in the wrong place.

This article will help you understand and apply the most popular methods currently available, such as:

• Calculated by Market Capitalization

• Comparison with businesses in the same industry

• Using common industry valuation multiples

All presented in a simple, easy-to-understand manner, closely reflecting the business reality in Vietnam – so you can apply them immediately, rather than just reading for information.

Method 1: How to calculate company value using market capitalization

Step 1: Valuing a business by market capitalization

Understand what market capitalization is before applying it

• Market Capitalization is a common way to calculate the market value of a listed company.

• The formula is very simple:
  Current stock price × Total number of outstanding shares.

• The result reflects the total value that the market attributes to the company at that time.

• In practice, this method is widely used by investors for a quick assessment of a company's size.

Determine when to use this method

• Only applicable to companies listed on the stock exchange, as a public stock price is required.

• Suitable when you need to:

  • Compare sizes between companies in the same industry

  • Quickly assess current valuation levels

  • Classify businesses as large, medium, or small

• Not suitable for unlisted companies as there is no clear stock price.

Understand the advantages to leverage them correctly

• Quick, transparent, and verifiable calculation.

• Reflects market expectations for the company's future profits.

• Widely used in financial reporting, investment analysis, and M&A activities.

In valuation consulting, I often use market capitalization as an initial reference point before conducting deeper analysis.

Identify limitations before making a decision

• Stock prices fluctuate with the market, news, and investor sentiment.

• If the market declines sharply due to external factors, the market value of the business also decreases, even if business operations remain unchanged.

• Market capitalization depends heavily on confidence and expectations, so it may not fully reflect the true value of the business.

For example, when the overall market corrects, many businesses may still show profit growth, but their market capitalization may still decline with the general trend.

Practical conclusion when using capitalization for valuation

• View market capitalization as an initial reference indicator, not a final conclusion.

• Should combine with:

  • Financial statement analysis

  • Comparing P/E, P/B with businesses in the same industry

  • Assessing cash flow and growth prospects

Market capitalization is the easiest to understand and apply first step. However, to accurately value for the purpose of fundraising, selling a business, or long-term investment, you need to look beyond the numbers displayed on the stock exchange.

Step 2: How to find the current stock price

Finding the correct market price at the current time

• To accurately calculate market capitalization, you need to use the current stock price (the price currently being traded on the market).

• This is the price at which investors are actually buying and selling, not the initial listing price or the past average price.

• In business valuation, discrepancies in the timing of price data can lead to significant differences in results.

Look up stock prices from reliable sources

You can find stock prices on major financial platforms such as:

• Bloomberg

• Yahoo! Finance

• Google Finance

The quickest way to find it:

1. Type the company name + "stock" on Google.

2. Or enter the stock ticker (e.g., VNM, FPT, AAPL if known).

3. Check the section displaying the current trading price (Current Price / Market Price).

Typically, this price is prominently displayed at the top of the stock report page.

Pay attention to choosing the correct price type for calculation

• Use the Current Market Price.

• Do not use:

  • Closing price from several days ago

  • Target price forecast by experts

  • Initial IPO price

You need to take the correct price at the time of valuation. If valuing for fundraising or M&A purposes, it's advisable to clearly state the date and time the data was collected to ensure transparency and reliability.

Step 3: How to find the number of outstanding shares

Understand what "outstanding shares" are

• Outstanding shares are the total number of shares currently held by:

  • Insiders (management, employees, board of directors)

  • External investors (individuals, investment funds, banks)

• This is mandatory data when applying the method of calculating the market value of a business using the formula:

  Current stock price × Number of outstanding shares

Where to find accurate information

You can look up the number of outstanding shares using 2 common methods:

1. On financial websites (the same place you check stock prices)

   • Look for "Shares Outstanding" in the stock's overview section.

   • Usually located near indicators such as market capitalization, P/E, EPS.

2. In the company's financial reports

   • Go to the Balance Sheet.

   • Find the section "Equity" or "Capital Stock".

   • Listed companies are required to disclose their financial statements on their websites or stock exchange portals.

Just search on Google:
Company name + "financial statements" or "balance sheet" to access the public version.

Notes to avoid errors in valuation

• Check if the number refers to outstanding shares or diluted shares.

• If the purpose of valuation is for M&A or fundraising, it's advisable to also look at the number of potentially issuable shares (options, ESOPs, etc.).

• Clearly state the source and date of data collection to ensure transparency when presenting the business's market value.

In actual valuation consulting, many people only take the stock price and forget to check the updated number of outstanding shares. An error at this step can lead to a difference of hundreds of billions VND in the calculated market capitalization. Therefore, this step, though simple, determines the accuracy of the entire valuation process.

Step 4: Calculate market capitalization from shares

Applying the market capitalization formula

• Once you have:

  • Current stock price

  • Number of outstanding shares

• You just need to apply the formula:

  Stock price × Number of outstanding shares = Market Capitalization

• This result is the market value of the business at the time of calculation.

This is the quickest way to estimate the size of a business in the stock market.

Correctly understanding the meaning of this figure

• Market capitalization represents the total value of ownership held by all shareholders.

• It reflects how the market is valuing the business based on:

  • Future earnings expectations

  • Growth rate

  • Industry position

• However, this is still a market-based value, not an absolute intrinsic value.

Specific illustrative example

Assume a telecommunications company has:

• 100,000 shares outstanding

• Each share is trading at $13

Then: 100,000 × 13 = 1,300,000 USD

Thus, the company's market capitalization is 1.3 million USD.

If you are applying this method for calculating the market value of a business for fundraising or investment analysis, remember to:

• Always specify the stock price date

• Check for the latest updated share count

• Compare with similar businesses in the same industry for a more comprehensive view

Even a slight error in one of these two variables can significantly skew the entire valuation result.

Method 2: Valuing a business by comparing similar companies

Step 1: When to use the comparative method

Determine the context before choosing a valuation method

• The comparative method is suitable when:

  • The company is unlisted, making market capitalization calculation impossible.

  • The market capitalization figure is considered unreflective of reality.

• This is a common way to estimate the market value of private businesses when public data is scarce.

In M&A consulting, for family businesses or startups not yet listed, comparing similar transactions is often the most viable option.

Identifying cases where market capitalization is unreliable

• Businesses owning significant intangible assets such as brands, technology, or patents.

• Stock prices inflated due to:

  • Speculative sentiment

  • Overly optimistic investor expectations

  • Short-term market news

In these cases, the market value of the business might be "inflated" compared to its actual financial capacity.

How to estimate using the comparative method

• Find similar businesses that have been recently bought or sold.

• Compare based on:

  • Industry

  • Revenue size

  • Profit margin

  • Growth rate

• Examine actual transaction prices to estimate a reasonable valuation range.

This approach is often used when valuing a business for sale, investment solicitation, or equity division.

Understand the limitations before applying

• Difficulty in finding transaction data due to:

  • Not all deals announce their sale price.

  • Private businesses have less transparency in information.

• Each transaction has a different context:

  • Sale due to financial distress

  • Sale due to strategic restructuring

  • Sale when the business is experiencing strong growth

These factors can distort results if you only look at the sale price without analyzing the circumstances.

Practical Conclusion

If you're looking for a method to calculate the market value of a private business, the comparative method is the simplest and most feasible option for an initial estimate.

Step 2: How to find equivalent businesses

Correctly identify comparison criteria

When applying the comparative method in calculating the market value of a business, choosing the wrong benchmark company will lead to results far from reality.

To ensure reliability, the businesses used for comparison should meet the following criteria:

• Same business industry

• Similar scale (revenue, number of employees, market share)

• Similar profit and profit margin levels

• Similar business model (B2B, B2C, technology platform, manufacturing, etc.)

For example, a fast-growing tech startup should not be compared with a saturated traditional business.

Prioritize transactions close to the valuation date

• It is advisable to choose recent acquisition deals.

• Markets change rapidly, especially in industries like technology, real estate, and retail.

• Transactions from 3-5 years ago may no longer accurately reflect current market conditions.

When valuing, the "timing" factor directly impacts the market value of the business.

Compare with listed companies for easy reference

If you are valuing a private company, the most practical and fastest way is to:

• Find listed companies of similar industry and size.

• Calculate their market capitalization by:

  • Current share price

  • Multiplied by the number of shares outstanding

Just a few minutes of online research can help you estimate the valuation scale of comparable businesses.

Important notes to avoid discrepancies

• Don't just look at revenue; consider actual profit as well.

• Check growth rates, as fast-growing businesses are usually valued higher.

• Also assess brand position and competitive advantages.

In practice, the step of selecting comparable businesses determines more than 50% of the accuracy of the valuation result. Choosing the right comparables will provide a solid basis for negotiating purchase prices or raising capital.

Step 3: Calculate the average sale price to estimate value

1. Aggregate sale prices or valuations of comparable businesses

After selecting businesses in the same industry and of similar size, you need to:

• Record the actual sale prices of recent transactions
  or

• Obtain the valuation levels of similar listed companies

This is the foundational data for estimating the market value of the business you are analyzing.

The more suitable data you have, the higher the reliability.

2. Calculate a simple average price

The formula is very easy to apply:

Sum of all prices ÷ Number of comparable businesses

Practical example:

Suppose three medium-sized telecom businesses were sold for:

• 900,000 USD

• 1,100,000 USD

• 750,000 USD

Then: (900,000 + 1,100,000 + 750,000) ÷ 3 = 916,000 USD

The figure of 916,000 USD can serve as an initial reference point for valuing the business you are analyzing.

If you previously calculated the market capitalization to be 1,300,000 USD, it's clear that valuation might be overly optimistic compared to the market average.

3. Consider using a weighted average for greater accuracy

Not all businesses in the comparison group are exactly alike. Therefore:

• If a company has the most similar size and structure, you can assign it a higher weighting factor.

• Businesses with less similarity should be given a lower weighting.

This method is called weighted average and often yields more accurate results in M&A activities.

Important notes when applying

• Ensure that the comparative transactions are sufficiently "close" in terms of industry and scale.

• Avoid using outdated data as market conditions change continuously.

• Do not rely solely on the average price; combine it with an analysis of revenue, profit, and cash flow.

In practice, this method helps you establish a "reasonable price range" during negotiations for buying or selling. When applied correctly in calculating the market value of a business, it helps you avoid two common mistakes: overvaluation due to emotion, or undervaluation due to lack of comparative data.

Method 3: Valuing a company using financial ratios

Step 1: When to use the multiplier method

Understand the nature of the multiplier method

The multiplier method is a common approach for valuing small and medium-sized businesses. The process is very simple:

• Select a key financial indicator, for example:

  • Gross revenue

  • Revenue + inventory

  • Net profit

• Multiply that indicator by an appropriate industry multiplier to arrive at the estimated value of the business.

This is a quick approach in calculating the market value of a business when extensive analytical data is not yet available.

Why this method is suitable for small businesses

• Small businesses often do not have complex financial structures.

• Accounting data is relatively simple.

• The SME buying and selling market is often based on "profit multiples" or "revenue multiples."

Practical example:

• A business has a net profit of 2 billion VND/year.

• The common industry multiple is 4 times profit.

Then, the estimated value = 2 billion × 4 = 8 billion VND.

This is how many individual investors and small funds quickly value a business before conducting detailed due diligence.

Identify limitations before applying

This method should only be used for initial estimation because:

• It does not account for:

  • Actual cash flow

  • Liabilities

  • Intangible assets

  • Legal risks

• It does not reflect differences in:

  • Growth rate

  • Competitive advantage

  • Quality of management team

Therefore, if you are making large investment or high-value transaction decisions, you need to combine this with other methods.

Practical Conclusion

If you are looking to quickly value a small business for negotiation or reference, the multiplier method is a reasonable choice.

Step 2: Prepare necessary financial data

Identify mandatory metrics when using the multiplier method

To correctly apply the multiplier method in calculating the market value of a business, you need to collect at least the following data:

• Annual Revenue / Sales

• Net Profit

• Profit Margin

• Total Assets

• Inventory value (if any)

In practice, revenue and profit are the two most commonly used metrics when valuing small businesses.

Where to find accurate data

• For listed companies:

  • Access public financial reports

  • See in:

    • Income Statement

    • Balance Sheet

• For private businesses:

  • You need to be provided with internal reports

  • It is advisable to request audited reports (if available) to increase reliability

If there is no clear data, the valuation will only be an estimate.

Understand the role of each type of data

• Revenue: Represents operational scale.

• Net profit: Reflects actual efficiency.

• Profit margin: Indicates cost optimization level.

• Assets and inventory: Important for manufacturing and retail businesses.

For example, two companies have the same annual revenue of 50 billion VND, but one company has a profit margin of 20%, while the other only has 5%. The valuation will certainly be very different.

Notes to avoid valuation discrepancies

• Use data from the most recent year or an average of 2–3 years to avoid abnormal fluctuations.

• Check if revenue is seasonal.

• Exclude extraordinary income when calculating profit.

In practice, the biggest error in valuation consulting often comes from using unstandardized data. Therefore, before multiplying by any coefficient, ensure that the financial data is clear and reliable. This is the foundation that determines the accuracy of the entire business valuation process.

Step 3: How to choose the right multiplier

Understand that multipliers are not fixed

In the multiplier method, the coefficient is not a single number for all businesses. It varies depending on:

• Business industry

• Market competitiveness

• Industry growth rate

• Legal or financial risks of the business

• Economic trends at the time of valuation

Therefore, when applying the method for calculating the market value of a business, you should not use "word-of-mouth" multipliers or randomly pick one from another industry.

Find multipliers from reliable sources

You can refer to multipliers from:

• Industry associations

• Market analysis reports

• Professional valuation firms

• "Rules of thumb" in business valuation

For example, some small retail industries might be valued at 2–4 times net profit, while high-growth tech companies could be at 5–10 times profit.

Identify the correct financial metric associated with the multiplier

The multiplier source usually specifies which metric you need to multiply by; the most common are:

• Annual Net Income

• EBITDA (earnings before interest, taxes, depreciation, and amortization)

• Net revenue

A common mistake is to use an EBITDA multiple but multiply it by net profit, leading to significantly inaccurate results.

Practical considerations when applying

• If the business is growing well and stably, the price can be negotiated higher.

• If cash flow is unstable, buyers often demand a reduction in the multiple.

• During a market downturn, valuation multiples are typically lower than during periods of strong growth.

In actual appraisal, multipliers serve as a reference and are influenced by buyer expectations. Therefore, when using this method in calculating the market value of a business, treat the multiplier as a flexible tool that needs to be adjusted according to context, not a fixed number applied rigidly.

Step 4: How to calculate value using the multiplier method

Apply a simple multiplication formula

Once you have:

• The appropriate financial metric (revenue, net profit, or EBITDA)

• The correct industry multiplier

You simply perform the calculation:

Financial metric × Industry multiplier = Estimated business value

This is the final step in the multiplier method when applying it to calculating the market value of a business.

Specific illustrative example

Suppose:

• The average valuation multiple for a mid-sized accounting firm is 1.5 times annual revenue

• The firm's annual revenue is $1,400,000

Then:

$1,400,000 × 1.5 = $2,100,000

According to the multiplier method, the estimated value of the business is $2.1 million.

Understand the nature of the result correctly

• This is an initial reference value, not the final price.

• The result depends entirely on:

  • The accuracy of financial data

  • The suitability of the multiplier

• It does not reflect details such as:

  • Liabilities

  • Hidden assets

  • Legal risks

  • Management quality

Therefore, this figure should be seen as a "negotiation price range," not an absolute value.

Practical experience when using

• If the business is growing well and stably, the price can be negotiated higher.

• If cash flow is unstable, buyers often demand a reduction in the multiple.

• It is advisable to cross-check with market capitalization or comparable company analysis methods.

In practice, the multiplier method helps you get a quick answer when you need a preliminary valuation. But to accurately determine the market value of a business, especially in large transactions, you need to combine multiple methods and conduct deeper analysis before making a final decision.

Determine the valuation purpose before calculating

Different objectives, different views of value

When applying the method for calculating the market value of a business, you need to clarify: what is the valuation for?

• If for long-term investment, what matters is not how big the business is, but rather:

  • Compound Annual Growth Rate (CAGR)

  • Future earnings scalability

• If buying or selling a business, you should consider:

  • Fair negotiated value

  • Return potential

• For financial reporting or media purposes, market capitalization may suffice.

Many new investors only look at size and overlook that growth determines long-term profitability.

Distinguishing market value from other types of value

The market value of a business is not always the same as:

• Book Value

  • Based on tangible assets minus liabilities

  • Usually lower than market value if the business has a strong brand

• Enterprise Value (EV)

  • Includes debt and cash

  • More accurately reflects total value when acquiring the entire company

The difference between these indicators often comes from:

• Debt structure

• Intangible assets

• Growth expectations

• Market sentiment

Practical experience when making decisions

• Stock investment: prioritize CAGR and future cash flow analysis.

• Company acquisition: consider Enterprise Value instead of just market capitalization.

• Net asset valuation: also compare book value.

There is no "absolutely correct" number. Value depends on perspective and intended use.

Therefore, before applying any method for calculating the market value of a business, ask yourself: what are you looking for value for? That answer will determine how you effectively interpret and use the valuation figure.

References

1. Harvard Business School Online. (n.d.). How to value a company. Retrieved from https://online.hbs.edu/blog/post/how-to-value-a-company
2. AccountingTools. (n.d.). How to calculate the market value of a company. Retrieved from https://www.accountingtools.com/articles/how-to-calculate-the-market-value-of-a-company.html
3. Street of Walls. (n.d.). Financial statement analysis. Retrieved from http://www.streetofwalls.com/finance-training-courses/investment-banking-technical-training/financial-statement-analysis/
4. Street of Walls. (n.d.). Comparable company analysis. Retrieved from https://www.streetofwalls.com/finance-training-courses/investment-banking-technical-training/comparable-company-analysis/
5. BizStats. (n.d.). Valuation rule of thumb reports. Retrieved from http://www.bizstats.com/reports/valuation-rule-thumb.php

Translation: Leigh Kennedy Ly.