If you are wondering whether Lumentum Holdings is fairly priced after its huge run, this piece breaks down what the current share price might be implying about value.

Over the short term the stock has been mixed, with a 1.4% decline over the last 7 days, a 13.4% gain over the last month, and a 128.3% return year to date.

Looking further back, returns over 1, 3 and 5 years are very large. This often reflects big shifts in expectations about a company and its risks.

That backdrop makes the current valuation even more important. Lumentum Holdings currently scores 2 out of 6 on Simply Wall St's valuation checks. The sections that follow will compare different valuation methods and then finish with a broader way to think about what the market may be pricing in.

Lumentum Holdings scores just 2/6 on our valuation checks. See what other red flags we found in the full valuation breakdown.

Approach 1: Lumentum Holdings Discounted Cash Flow (DCF) Analysis

A Discounted Cash Flow model projects a company’s future cash flows and then discounts them back to today’s value to estimate what the business might be worth right now.

For Lumentum Holdings, the 2 Stage Free Cash Flow to Equity model starts from last twelve months free cash flow of about $3.2 million loss and then uses analyst forecasts followed by extrapolated estimates. Analyst inputs include projected free cash flow of $247.45 million in 2026 and $866.2 million in 2027. By 2028, free cash flow is projected at $2.404 billion, with further years estimated by Simply Wall St to build a 10 year path of cash flows.

Discounting these projected cash flows back to today gives an estimated intrinsic value of about $2,304.90 per share. Relative to the current share price, this implies the stock is about 61.7% below that DCF estimate, which indicates Lumentum Holdings is trading at a large discount based on this model.

Result: UNDERVALUED

Our Discounted Cash Flow (DCF) analysis suggests Lumentum Holdings is undervalued by 61.7%. Track this in your watchlist or portfolio, or discover 56 more high quality undervalued stocks.

Approach 2: Lumentum Holdings Price vs Sales

For many profitable companies, the P/S ratio is a useful way to think about value because it links what you pay for each share directly to the revenue that business is generating. It is particularly helpful when earnings are less informative, but sales are more stable.

What counts as a “normal” or “fair” P/S ratio usually reflects what investors are willing to pay for a company’s growth potential and the risks they see in its business. Higher expected growth and lower perceived risk often support a higher multiple, while lower growth or higher risk usually go with a lower multiple.

Lumentum Holdings currently trades on a P/S ratio of 29.90x, compared with the Communications industry average of 2.61x and a peer average of 11.67x. Simply Wall St’s Fair Ratio for Lumentum Holdings is 17.60x. This Fair Ratio is a proprietary estimate of what the P/S might be, given factors such as earnings growth, industry, profit margins, market cap and company specific risks. It can be more tailored than a simple peer or industry comparison because it adjusts for those characteristics rather than assuming one size fits all. On this basis, Lumentum Holdings’ current P/S multiple sits above the Fair Ratio, which suggests the shares may be richly priced on sales.

Result: OVERVALUED

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Upgrade Your Decision Making: Choose your Lumentum Holdings Narrative

Earlier it was mentioned that there is an even better way to understand valuation, and Narratives are Simply Wall St's way for you to attach a clear story about Lumentum Holdings to the numbers by linking your view on its future revenue, earnings and margins to a financial forecast and a Fair Value. You can then compare that Fair Value with the current price to decide whether the share price fits your view.

On the Community page, Narratives are an easy, guided tool that many investors use to set out their assumptions, see what Fair Value those assumptions imply, and then watch that Narrative update automatically as new information such as earnings, guidance or major deals flows through.

For Lumentum Holdings, for example, one Narrative might align with a more cautious Fair Value around US$433.09, while another could reflect a more optimistic Fair Value around US$1,033.69. Seeing those side by side helps you decide which story about AI optics demand, customer concentration and margins feels closer to your own expectations before you act on the difference between Fair Value and the live market price.

For Lumentum Holdings, we will make it straightforward with previews of two leading Lumentum Holdings Narratives:

Fair value: US$1,033.69

Current price vs this fair value: about 14.7% below the narrative fair value

Revenue growth assumption: 73.18% a year

• Assumes AI driven optical demand, capacity expansion and index inclusion support much higher revenue, margins and earnings power by 2029.
• Builds in large Nvidia commitments, new U.S. manufacturing and wider adoption of advanced optics as support for a higher long term earnings base.
• Flags meaningful risks around customer concentration, manufacturing transitions, competition and execution, which could challenge that upside case.

Fair value: US$773.35

Current price vs this fair value: about 14.0% above the narrative fair value

Revenue growth assumption: 60.92% a year

• Uses analyst consensus style assumptions that still point to strong revenue and margin expansion, but with a lower fair value than the current price.
• Highlights reliance on a small group of hyperscale customers, production constraints and lower margin cloud modules as important pressure points.
• Emphasises competition, possible overbuild in indium phosphide capacity and geopolitical or supply chain shocks as key tests for the current valuation.

If you want to see how those assumptions translate into detailed forecasts, risks and a live Fair Value that updates as new data comes through, it is worth reading the full narratives that these summaries come from, then deciding which story sits closer to your own expectations before making any move on the stock.

Do you think there's more to the story for Lumentum Holdings? 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.