• Wondering if Applied Optoelectronics at US$157.55 is still offering value after its huge rise, or if you are late to the story? This article walks through what the current price might be implying.
• The stock has seen a 33.9% gain over the last 30 days, a very large return over 1 year, and an even larger move over 3 years, although there was a 4.1% decline over the last week.
• Recent coverage has focused on Applied Optoelectronics as a high volatility stock, with strong interest around its role in optical networking and links to themes such as data centers and high speed connectivity. That attention helps explain why the price has moved so sharply, and why opinions on its risk profile can vary so widely.
• Despite the strong share price history, the company scores only 1 out of 6 on our valuation checks. The next sections will walk through earnings, revenue and asset based approaches to value, before finishing with a more complete way to think about what this stock might be worth.

Applied Optoelectronics scores just 1/6 on our valuation checks. See what other red flags we found in the full valuation breakdown.

Approach 1: Applied Optoelectronics Discounted Cash Flow (DCF) Analysis

A Discounted Cash Flow model estimates what a stock could be worth by projecting future cash flows and discounting them back to today, using an assumed required rate of return.

For Applied Optoelectronics, the model used is a 2 Stage Free Cash Flow to Equity approach. The latest twelve month free cash flow is a loss of $310.8 million, so the forecast starts from a negative base. Analysts supply near term estimates and then Simply Wall St extrapolates further out, resulting in an expected free cash flow of $639.4 million in 2035, all in $.

Across the ten year projection period, discounted free cash flows range from a loss of $131.7 million in 2026 to a positive $278.2 million by 2035. Combining these, plus a terminal value, gives an estimated intrinsic value of about $96.03 per share.

Compared to the current share price of $157.55, the DCF output implies the stock is 64.1% overvalued on this model.

Result: OVERVALUED

Our Discounted Cash Flow (DCF) analysis suggests Applied Optoelectronics may be overvalued by 64.1%. Discover 51 high quality undervalued stocks or create your own screener to find better value opportunities.

Approach 2: Applied Optoelectronics Price vs Sales

For companies where earnings are volatile or not yet a stable guide, P/S can be a useful way to think about value because it links what you pay directly to the revenue the business is generating.

In general, higher growth expectations and lower perceived risk can support a higher P/S multiple, while slower expected growth or higher risk tend to justify a lower multiple. So the question is not whether a P/S of, say, 10x is high or low in isolation, but whether it fits the company’s specific profile.

Applied Optoelectronics currently trades on a P/S of 27.67x, compared with the Communications industry average of 2.56x and a peer average of 8.90x. Simply Wall St’s Fair Ratio framework estimates what a more tailored P/S might be, using factors such as growth expectations, profit margins, industry and market cap. For Applied Optoelectronics, this Fair Ratio is 36.18x, which is higher than the current 27.67x. This indicates that the stock screens as undervalued on this metric.

Result: UNDERVALUED

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Upgrade Your Decision Making: Choose your Applied Optoelectronics Narrative

Earlier it was mentioned that there is an even better way to understand valuation. Meet Narratives, a simple tool on Simply Wall St’s Community page that lets you turn your view of Applied Optoelectronics into a joined up story that links its business drivers, a forecast for revenue, earnings and margins, and then a fair value you can compare to today’s price.

Instead of only looking at a single DCF or P/S output, you choose or build a Narrative that fits your view. For example, you might consider a very bullish fair value of US$190.0 that assumes earnings of US$899.8 million by about May 2029 and a future P/E of 24.6x. Alternatively, you might prefer a more cautious fair value of US$54.0 that assumes earnings of US$760.8 million by about March 2029 and a future P/E of 8.3x. You can then see whether that fair value sits above or below the current share price to help decide if the stock looks expensive or cheap to you.

Because Narratives on the platform update when new information arrives, such as guidance changes, new 1.6T or 800G orders, or revised analyst targets, you can keep tracking how your chosen story for Applied Optoelectronics compares with other investors’ views and decide if and when the gap between price and your fair value is wide enough to act on.

For Applied Optoelectronics, however, we will make it really easy for you with previews of two leading Applied Optoelectronics Narratives:

Fair value in this bullish Narrative: US$190.0

Implied pricing vs that fair value: the current US$157.55 share price is about 17.1% below this Narrative fair value.

Revenue growth assumption in this Narrative: 103.66% a year.

• Assumes very rapid growth in 400G, 800G and later 1.6T data center products, supported by large hyperscaler orders and expanded US manufacturing capacity.
• Builds in a shift from current losses to a 23.37% profit margin and earnings of US$899.8m by 2029, with the stock trading on a future P/E of 24.6x.
• Highlights material risks around customer concentration, technology change, long qualification cycles and geopolitics, which could challenge those high expectations.

Fair value in this more cautious Narrative: US$78.0

Implied pricing vs that fair value: the current US$157.55 share price is about 102.0% above this Narrative fair value.

Revenue growth assumption in this Narrative: 57.68% a year.

• Accepts that Applied Optoelectronics is now closely linked to AI infrastructure, with management pointing to US$1b plus of 2026 revenue and US$120m plus of non GAAP operating profit as targets.
• Flags that the current valuation already builds in strong growth, with the stock trading at several times sales and depending on clean execution on 800G and 1.6T ramps, margins and capacity expansion.
• Emphasises high customer concentration, execution and dilution risks, as well as exposure to Asia based manufacturing and possible multiple compression if expectations are not met.

If you want to go deeper into these storylines, you can see what the community is saying about Applied Optoelectronics and how different investors connect the business drivers, forecasts and fair values in a single place with See what the community is saying about Applied Optoelectronics

Do you think there's more to the story for Applied Optoelectronics? Head over to our Community to see what others are saying!

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.