Stock Analysis

Quest Diagnostics Incorporated (NYSE:DGX) Stock's Been Sliding But Fundamentals Look Decent: Will The Market Correct The Share Price In The Future?

With its stock down 6.7% over the past month, it is easy to disregard Quest Diagnostics (NYSE:DGX). However, stock prices are usually driven by a company’s financials over the long term, which in this case look pretty respectable. In this article, we decided to focus on Quest Diagnostics' ROE.

Return on equity or ROE is an important factor to be considered by a shareholder because it tells them how effectively their capital is being reinvested. In simpler terms, it measures the profitability of a company in relation to shareholder's equity.

How Do You Calculate Return On Equity?

Return on equity can be calculated by using the formula:

Return on Equity = Net Profit (from continuing operations) ÷ Shareholders' Equity

So, based on the above formula, the ROE for Quest Diagnostics is:

13% = US$948m ÷ US$7.0b (Based on the trailing twelve months to March 2025).

The 'return' refers to a company's earnings over the last year. One way to conceptualize this is that for each $1 of shareholders' capital it has, the company made $0.13 in profit.

Check out our latest analysis for Quest Diagnostics

Why Is ROE Important For Earnings Growth?

So far, we've learned that ROE is a measure of a company's profitability. Depending on how much of these profits the company reinvests or "retains", and how effectively it does so, we are then able to assess a company’s earnings growth potential. Assuming all else is equal, companies that have both a higher return on equity and higher profit retention are usually the ones that have a higher growth rate when compared to companies that don't have the same features.

A Side By Side comparison of Quest Diagnostics' Earnings Growth And 13% ROE

To begin with, Quest Diagnostics seems to have a respectable ROE. Especially when compared to the industry average of 11% the company's ROE looks pretty impressive. For this reason, Quest Diagnostics' five year net income decline of 12% raises the question as to why the high ROE didn't translate into earnings growth. Therefore, there might be some other aspects that could explain this. For example, it could be that the company has a high payout ratio or the business has allocated capital poorly, for instance.

So, as a next step, we compared Quest Diagnostics' performance against the industry and were disappointed to discover that while the company has been shrinking its earnings, the industry has been growing its earnings at a rate of 2.1% over the last few years.

past-earnings-growth
NYSE:DGX Past Earnings Growth July 13th 2025

The basis for attaching value to a company is, to a great extent, tied to its earnings growth. The investor should try to establish if the expected growth or decline in earnings, whichever the case may be, is priced in. Doing so will help them establish if the stock's future looks promising or ominous. Is Quest Diagnostics fairly valued compared to other companies? These 3 valuation measures might help you decide.

Is Quest Diagnostics Using Its Retained Earnings Effectively?

Looking at its three-year median payout ratio of 38% (or a retention ratio of 62%) which is pretty normal, Quest Diagnostics' declining earnings is rather baffling as one would expect to see a fair bit of growth when a company is retaining a good portion of its profits. So there could be some other explanations in that regard. For instance, the company's business may be deteriorating.

Moreover, Quest Diagnostics has been paying dividends for at least ten years or more suggesting that management must have perceived that the shareholders prefer dividends over earnings growth. Existing analyst estimates suggest that the company's future payout ratio is expected to drop to 28% over the next three years. However, the company's ROE is not expected to change by much despite the lower expected payout ratio.

Conclusion

Overall, we feel that Quest Diagnostics certainly does have some positive factors to consider. Yet, the low earnings growth is a bit concerning, especially given that the company has a high rate of return and is reinvesting ma huge portion of its profits. By the looks of it, there could be some other factors, not necessarily in control of the business, that's preventing growth. With that said, we studied the latest analyst forecasts and found that while the company has shrunk its earnings in the past, analysts expect its earnings to grow in the future. Are these analysts expectations based on the broad expectations for the industry, or on the company's fundamentals? Click here to be taken to our analyst's forecasts page for the company.

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Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team (at) simplywallst.com.

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.

About NYSE:DGX

Quest Diagnostics

Provides diagnostic testing and services in the United States and internationally.

Established dividend payer and good value.

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