Most readers would already be aware that AZEK's (NYSE:AZEK) stock increased significantly by 12% over the past three months. Since the market usually pay for a company’s long-term fundamentals, we decided to study the company’s key performance indicators to see if they could be influencing the market. In this article, we decided to focus on AZEK's ROE.

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.

View our latest analysis for AZEK

How Is ROE Calculated?

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 AZEK is:

12% = US$164m ÷ US$1.4b (Based on the trailing twelve months to June 2024).

The 'return' is the amount earned after tax over the last twelve months. That means that for every $1 worth of shareholders' equity, the company generated $0.12 in profit.

What Is The Relationship Between ROE And Earnings Growth?

Thus far, we have learned that ROE measures how efficiently a company is generating its profits. We now need to evaluate how much profit the company reinvests or "retains" for future growth which then gives us an idea about the growth potential of the company. 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.

AZEK's Earnings Growth And 12% ROE

To start with, AZEK's ROE looks acceptable. Yet, the fact that the company's ROE is lower than the industry average of 19% does temper our expectations. Still, we can see that AZEK has seen a remarkable net income growth of 56% over the past five years. We reckon that there could be other factors at play here. For example, it is possible that the company's management has made some good strategic decisions, or that the company has a low payout ratio. However, not to forget, the company does have a decent ROE to begin with, just that it is lower than the industry average. So this certainly also provides some context to the high earnings growth seen by the company.

Next, on comparing with the industry net income growth, we found that AZEK's growth is quite high when compared to the industry average growth of 18% 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 AZEK's's valuation, check out this gauge of its price-to-earnings ratio, as compared to its industry.