Arista Networks' (NYSE:ANET) stock up by 8.4% over the past three months. Given that the market rewards strong financials in the long-term, we wonder if that is the case in this instance. Specifically, we decided to study Arista Networks' ROE in this article.

Return on Equity or ROE is a test of how effectively a company is growing its value and managing investors' money. In simpler terms, it measures the profitability of a company in relation to shareholder's equity.

How To Calculate Return On Equity?

The formula for ROE is:

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

So, based on the above formula, the ROE for Arista Networks is:

29% = US$2.7b ÷ US$9.2b (Based on the trailing twelve months to September 2024).

The 'return' is the income the business earned over the last year. So, this means that for every $1 of its shareholder's investments, the company generates a profit of $0.29.

What Is The Relationship Between ROE And Earnings Growth?

So far, we've learned that ROE is a measure of a company's profitability. Based on how much of its profits the company chooses to reinvest or "retain", we are then able to evaluate a company's future ability to generate profits. Assuming everything else remains unchanged, the higher the ROE and profit retention, the higher the growth rate of a company compared to companies that don't necessarily bear these characteristics.

Arista Networks' Earnings Growth And 29% ROE

Firstly, we acknowledge that Arista Networks has a significantly high ROE. Secondly, even when compared to the industry average of 18% the company's ROE is quite impressive. So, the substantial 30% net income growth seen by Arista Networks over the past five years isn't overly surprising.

Next, on comparing with the industry net income growth, we found that Arista Networks' growth is quite high when compared to the industry average growth of 8.3% in the same period, which is great to see.

Earnings growth is an important metric to consider when valuing a stock. What investors need to determine next is if the expected earnings growth, or the lack of it, is already built into the share price. By doing so, they will have an idea if the stock is headed into clear blue waters or if swampy waters await. If you're wondering about Arista Networks''s valuation, check out this gauge of its price-to-earnings ratio, as compared to its industry.

Is Arista Networks Using Its Retained Earnings Effectively?

Arista Networks doesn't pay any regular dividends to its shareholders, meaning that the company has been reinvesting all of its profits into the business. This is likely what's driving the high earnings growth number discussed above.

Conclusion

In total, we are pretty happy with Arista Networks' performance. Specifically, we like that the company is reinvesting a huge chunk of its profits at a high rate of return. This of course has caused the company to see substantial growth in its earnings. With that said, the latest industry analyst forecasts reveal that the company's earnings growth is expected to slow down. To know more about the company's future earnings growth forecasts take a look at this free report on analyst forecasts for the company to find out more.

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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.