Optical Cable (NASDAQ:OCC) has had a rough three months with its share price down 23%. However, stock prices are usually driven by a company’s financial performance over the long term, which in this case looks quite promising. Particularly, we will be paying attention to Optical Cable's ROE today.

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.

See our latest analysis for Optical Cable

How To Calculate Return On Equity?

The formula for return on equity is:

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

So, based on the above formula, the ROE for Optical Cable is:

18% = US$4.5m ÷ US$26m (Based on the trailing twelve months to July 2023).

The 'return' refers to a company's earnings over the last year. So, this means that for every $1 of its shareholder's investments, the company generates a profit of $0.18.

Why Is ROE Important For 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.

Optical Cable's Earnings Growth And 18% ROE

To start with, Optical Cable's ROE looks acceptable. Further, the company's ROE compares quite favorably to the industry average of 9.5%. This probably laid the ground for Optical Cable's significant 39% net income growth seen over the past five years. However, there could also be other causes behind this growth. Such as - high earnings retention or an efficient management in place.

Next, on comparing Optical Cable's net income growth with the industry, we found that the company's reported growth is similar to the industry average growth rate of 39% over the last few years.

Earnings growth is a huge factor in stock valuation. The investor should try to establish if the expected growth or decline in earnings, whichever the case may be, is priced in. By doing so, they will have an idea if the stock is headed into clear blue waters or if swampy waters await. Is Optical Cable fairly valued compared to other companies? These 3 valuation measures might help you decide.