Is Comfort Systems USA, Inc. (NYSE: FIX) A Sell At Its Current Enterprise Multiple?


Comfort Systems USA, Inc. (NYSE: FIX), an industrials business with a market capitalization of $1.8 billion, currently trades at a Sales Multiple of 1.0x which is below the sector’s median multiple of 1.5x. Although this makes FIX look attractive, investors may change their mind after reviewing the assumptions behind the EV / Sales ratio. In the post below, I calculate Comfort Systems USA’s fair value using a Sales Multiples valuation.

How To Interpret Comfort Systems USA’s Sales Multiple

A multiples valuation, also known as a comparable companies analysis, determines the value of a subject company by benchmarking the subject’s financial performance against companies deemed to be similar. We can then determine if a company is undervalued or overvalued relative to its peers by comparing metrics like growth, profit margin, and valuation multiples.

EV / Sales, also known as Enterprise Value-to-Sales Multiple or a Sales Multiple, measures the dollars in Enterprise Value for each dollar of revenue. Its key benefit over the P/E multiple is that it’s capital structure-neutral, and, therefore, better at comparing companies with different levels of debt. The general formula behind a Sales Multiples valuation model is the following:

Enterprise Value = Revenue x Selected Multiple

The EV / Sales ratio by itself is not very helpful at all. It is only useful when comparing it to other companies that are considered similar to the subject company. The basic idea is that companies with similar characteristics should trade at similar multiples, all other things being equal. Therefore, we can come to a conclusion about the stock if the ratios are different. In the chart below, I compare Comfort Systems USA’s EV / Sales ratio to its peer group that includes MasTec, Inc. (NYSE: MTZ), KBR, Inc. (NYSE: KBR), Granite Construction Incorporated (NYSE: GVA) and Jacobs Engineering Group Inc. (NYSE: JEC).

FIX Sales Multiple vs Peers Chartsource: Benchmarks: Sales Multiples

Since Comfort Systems USA’s EV / Sales ratio of 1.0x is higher than the median of its peers (0.7x), it means that investors are paying more than they should for each dollar of FIX’s revenue. As such, our analysis shows that FIX represents an overvalued stock. Furthermore,’s EV / Sales Ratio Model calculates a fair value of $37.95 per share which implies -20.2% downside.

FIX EV / Sales Valuation Calculation

I selected a fair multiple of 0.8x in my analysis by averaging Comfort Systems USA’s current EV / Sales ratio with its peer group.

Sales Multiple Flaws

While this approach typically provides a reasonable valuation range, it is important to understand that our conclusion rests on some important assumptions. The first being that the selected peer group actually contains companies that truly are similar to Comfort Systems USA. The second important assumption is that the selected peer group stocks are being fairly valued by the market.

If the assumptions above do not hold to be true, then the difference in EV / Sales ratios could be due to a variety of factors. For example, if you accidentally compare Comfort Systems USA with lower growth companies, then its sales multiple would naturally be higher than its peers since investors reward high growth stocks with a higher price. Furthermore, sales multiples are highly correlated with EBITDA margins so differences in profit margin often explain differences in valuation.

FIX revenue Growth and Margins vs Peers Tablesource: sales multiples model

Now if the second assumption does not hold true, Comfort Systems USA’s higher multiple may be because firms in our peer group are being undervalued by the market.

What To Do Next

As a current investor, you may have already conducted fundamental analysis on the company and its stock so its current overvaluation could signal a potential selling opportunity to reduce your exposure to FIX. But keep in mind the EV / Sales ratio’s potential flaws when applying this valuation approach. It is important to note that there are a variety of other fundamental factors that I have not taken into consideration in this article. I highly recommend that you continue your research on Comfort Systems USA by taking a look at the following:

Valuation Metrics: what is Comfort Systems USA’s price to book ratio and how does it compare to its peers? Analyze Price / Book here.

Risk Metrics: what is Comfort Systems USA’s CapEx coverage? This is the amount a company outlays for capital assets for each dollar it generates from those investments. View the company’s CapEx coverage here.

Efficiency Metrics: inventory turnover is a ratio that measures the number of times a company’s inventory is sold and replaced over the year. View Comfort Systems USA’s inventory turnover here.

As of this writing, I did not hold a position in any of the aforementioned securities and this is not a buy or sell recommendation on any security mentioned.

Expertise: financial modeling, mergers & acquisitions. Andy is also a founder at, where he’s focused on building tools that make it faster and easier for investors to do investment research. Andy’s background is in investment banking where he led the analysis on over 50 board advisory engagements involving mergers and acquisitions, fairness opinions and solvency opinions. Some of his board advisory highlights: - Sears Holdings Corp.’s $620 mm spin-off via rights offering of Sears Outlet, Hometown Stores and Sears Hardware Stores. - Cerberus Capital Management’s $3.3 bn acquisition of SUPERVALU Inc.’s New Albertsons, Inc. assets. Andy can be reached at or at +1 (516) 778-6257.

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