How Applied Optoelectronics Inc (AAOI) Delivered A Better ROE Than Its Industry

Applied Optoelectronics Inc (NASDAQ:AAOI) delivered an ROE of 32.21% over the past 12 months, which is an impressive feat relative to its industry average of 8.66% during the same period. On the surface, this looks fantastic since we know that AAOI has made large profits from little equity capital; however, ROE doesn’t tell us if management have borrowed heavily to make this happen. We’ll take a closer look today at factors like financial leverage to determine whether AAOI’s ROE is actually sustainable. Check out our latest analysis for Applied Optoelectronics

Peeling the layers of ROE – trisecting a company’s profitability

Firstly, Return on Equity, or ROE, is simply the percentage of last years’ earning against the book value of shareholders’ equity. For example, if AAOI invests $1 in the form of equity, it will generate $0.32 in earnings from this. Generally speaking, a higher ROE is preferred; however, there are other factors we must also consider before making any conclusions.

Return on Equity = Net Profit ÷ Shareholders Equity

ROE is assessed against cost of equity, which is measured using the Capital Asset Pricing Model (CAPM) – but let’s not dive into the details of that today. For now, let’s just look at the cost of equity number for AAOI, which is 10.19%. Given a positive discrepancy of 22.03% between return and cost, this indicates that AAOI pays less for its capital than what it generates in return, which is a sign of capital efficiency. ROE can be broken down into three different ratios: net profit margin, asset turnover, and financial leverage. This is called the Dupont Formula:

Dupont Formula

ROE = profit margin × asset turnover × financial leverage

ROE = (annual net profit ÷ sales) × (sales ÷ assets) × (assets ÷ shareholders’ equity)

ROE = annual net profit ÷ shareholders’ equity

NasdaqGM:AAOI Last Perf Dec 10th 17
NasdaqGM:AAOI Last Perf Dec 10th 17

The first component is profit margin, which measures how much of sales is retained after the company pays for all its expenses. Asset turnover shows how much revenue AAOI can generate with its current asset base. And finally, financial leverage is simply how much of assets are funded by equity, which exhibits how sustainable AAOI’s capital structure is. Since ROE can be inflated by excessive debt, we need to examine AAOI’s debt-to-equity level. At 12.64%, AAOI’s debt-to-equity ratio appears low and indicates the above-average ROE is generated from its capacity to increase profit without a large debt burden.

NasdaqGM:AAOI Historical Debt Dec 10th 17
NasdaqGM:AAOI Historical Debt Dec 10th 17

What this means for you:

Are you a shareholder? AAOI exhibits a strong ROE against its peers, as well as sufficient returns to cover its cost of equity. Since ROE is not inflated by excessive debt, it might be a good time to add more of AAOI to your portfolio if your personal research is confirming what the ROE is telling you. If you’re looking for new ideas for high-returning stocks, you should take a look at our free platform to see the list of stocks with Return on Equity over 20%.

Are you a potential investor? If AAOI has been on your watch list for a while, making an investment decision based on ROE alone is unwise. I recommend you do additional fundamental analysis by looking through our most recent infographic report on Applied Optoelectronics to help you make a more informed investment decision.


To help readers see pass the short term volatility of the financial market, we aim to bring you a long-term focused research analysis purely driven by fundamental data. Note that our analysis does not factor in the latest price sensitive company announcements.

The author is an independent contributor and at the time of publication had no position in the stocks mentioned.

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