Tower Semiconductor's (NASDAQ:TSEM) stock up by 9.1% over the past three months. Since the market usually pay for a company's long-term financial health, we decided to study the company's fundamentals to see if they could be influencing the market. Particularly, we will be paying attention to Tower Semiconductor's ROE today.

Return on equity or ROE is a key measure used to assess how efficiently a company's management is utilizing the company's capital. Simply put, it is used to assess the profitability of a company in relation to its equity capital.

How To Calculate Return On Equity?

ROE 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 Tower Semiconductor is:

21% = US$520m ÷ US$2.4b (Based on the trailing twelve months to December 2023).

The 'return' is the income the business earned over the last year. Another way to think of that is that for every $1 worth of equity, the company was able to earn $0.21 in profit.

What Has ROE Got To Do With Earnings Growth?

We have already established that ROE serves as an efficient profit-generating gauge for a company's future earnings. 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 Tower Semiconductor's Earnings Growth And 21% ROE

To start with, Tower Semiconductor's ROE looks acceptable. Especially when compared to the industry average of 14% the company's ROE looks pretty impressive. Probably as a result of this, Tower Semiconductor was able to see an impressive net income growth of 36% over the last five years. However, there could also be other causes behind this growth. Such as - high earnings retention or an efficient management in place.

As a next step, we compared Tower Semiconductor's net income growth with the industry, and pleasingly, we found that the growth seen by the company is higher than the average industry growth of 29%.

The basis for attaching value to a company is, to a great extent, tied to its earnings growth. What investors need to determine next is if the expected earnings growth, or the lack of it, is already built into the share price. This then helps them determine if the stock is placed for a bright or bleak future. Is Tower Semiconductor fairly valued compared to other companies? These 3 valuation measures might help you decide.

Is Tower Semiconductor Using Its Retained Earnings Effectively?

Tower Semiconductor doesn't pay any dividend currently which essentially means that it has been reinvesting all of its profits into the business. This definitely contributes to the high earnings growth number that we discussed above.

Conclusion

In total, we are pretty happy with Tower Semiconductor's performance. Particularly, we like that the company is reinvesting heavily into its business, and at a high rate of return. Unsurprisingly, this has led to an impressive earnings growth. Having said that, on studying current analyst estimates, we were concerned to see that while the company has grown its earnings in the past, analysts expect its earnings to shrink in the future. To know more about the latest analysts predictions for the company, check out this visualization of analyst forecasts for the company.

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.