• This article looks at whether Lumentum Holdings is priced for further growth or already reflects a high level of optimism, focusing on what the current share price may indicate about value.
• The stock last closed at US$728.95, with returns of 16.7% over the past week, 9.2% over the past month and 88.8% year to date. Its one year and three year returns are also very large in percentage terms.
• These sharp moves have come as investors respond to ongoing developments around Lumentum Holdings and its position in the broader communications and technology space. Increased market attention on the company helps explain why many readers are now asking whether the current price still offers a margin of safety or instead reflects increased risk.
• Lumentum Holdings currently has a valuation score of 1 out of 6. The discussion ahead compares what different valuation approaches suggest about the stock and then concludes with a more complete way to think about valuation beyond a single metric.

Lumentum Holdings scores just 1/6 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, or DCF, model estimates what a company could be worth today by projecting its future cash flows and discounting them back to a present value. For Lumentum Holdings, the model used is a 2 Stage Free Cash Flow to Equity approach, based on cash flow projections out to 2035.

The latest twelve month free cash flow is reported as a loss of $3.19m, so the model leans heavily on future estimates. Analysts provide projections through to 2028, with free cash flow expected to reach $1,521.7m by that year, and Simply Wall St extends these estimates out to 2035 using its own growth assumptions. All figures are in US$.

On this basis, the DCF model arrives at an estimated intrinsic value of $863.87 per share. Compared with the recent share price of $728.95, this implies a discount of 15.6%. Under this method, the stock screens as undervalued.

Result: UNDERVALUED

Our Discounted Cash Flow (DCF) analysis suggests Lumentum Holdings is undervalued by 15.6%. Track this in your watchlist or portfolio, or discover 56 more high quality undervalued stocks.

Approach 2: Lumentum Holdings Price vs Sales

For companies that are either early in their profitability journey or have earnings that can swing around, the P/S ratio is often more useful than P/E because sales are usually more stable than net profit. Investors still factor in growth expectations and risk though, so a higher growth and higher risk company can trade on a higher P/S multiple than a mature, lower risk peer.

Lumentum Holdings currently trades on a P/S of 24.72x. That is well above the Communications industry average P/S of 1.83x and also above the peer group average of 9.75x. Simply Wall St’s Fair Ratio for Lumentum Holdings is 14.04x, which is the P/S level it would typically expect given the company’s growth profile, profit margins, market value, risk characteristics and industry.

This Fair Ratio is more tailored than a simple comparison with peers or the sector because it adjusts for company specific factors such as expected earnings growth, business risks and profitability, while still recognising the industry and size of the company. Comparing the actual P/S of 24.72x with the Fair Ratio of 14.04x suggests the shares are pricing in a higher level of optimism than the model implies.

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 this is where Narratives come in as a simple way for you to attach a clear story about Lumentum Holdings to your numbers, linking your view of its future revenue, earnings and margins to a Fair Value that can be compared directly with the current share price to help you decide when the price looks attractive or stretched.

On Simply Wall St’s Community page, Narratives let you set out this story in plain language, then tie it to a forecast and a Fair Value that updates automatically when new information such as earnings or major news lands, so your view is always kept current without any extra work from you.

For Lumentum Holdings, one Narrative might focus on the more optimistic Fair Value of about US$900.00 based on higher assumed growth and margins. Another narrative leans toward a lower Fair Value of about US$100.15 built on more cautious assumptions. Having both side by side makes it easier for you to see where your own expectations sit and what that implies about today’s price.

For Lumentum Holdings however we'll make it really easy for you with previews of two leading Lumentum Holdings Narratives:

Fair value: US$854.82

Undervaluation versus last close: about 14.7%

Assumed revenue growth rate: 27.77%

• Frames Lumentum as a core supplier for AI data centers, with NVIDIA committing US$2b via preferred stock and multiyear purchase agreements for advanced optical components.
• Highlights capacity build out, including a new U.S. wafer fab and expanded systems business, with the author viewing the company as a "Strategic Moat Leader" in high end optics.
• Arrives at a fair value of about US$854.82 using a 16x P/S multiple on projected 2026 revenue of US$2.8b, and describes the current price as a sizeable discount to that estimate.

Fair value: US$655.55

Overvaluation versus last close: about 11.2%

Assumed revenue growth rate: 52.85%

• Focuses on rapid demand tied to AI, cloud and hyperscale data centers, but flags that growth is heavily concentrated in a small group of large cloud customers.
• Emphasises execution risks around capacity expansion, lower margins in some cloud modules, and competition from other optical and silicon photonics suppliers.
• Uses analyst assumptions on revenue, earnings and P/E out to 2028 to support a fair value of about US$655.55, with the current price sitting modestly above the consensus target range.

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.