Lumentum Holdings has the GF Score of 43, which implies that the company
might have
Worst future performance potential, or not enough data.
The GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation, which has been found to be closely correlated to the long-term performances of stocks by backtesting from 2006 to 2021. The stocks with a higher GF Score generally generate higher returns than those with lower GF Scores. Therefore, when picking stocks, investors should invest in companies with high GF Scores. The GF Score ranges from 0 to 100, with 100 as the highest rank.
GF Score takes following five key aspects into consideration:
Each one of these components is ranked and the ranks also have positive correlation with the long term performances of stocks. The GF score is calculated using the five key aspects of analysis. Through backtesting, we know that each of these key aspects has a different impact on the stock price performance. Thus, they are weighted differently when calculating the total score. The Profitability Rank and the Growth Rank are weighted fully, while other parameters have less weight.
Based on research and backtesting result, GuruFocus believes Lumentum Holdings
might have
Worst future performance potential, or not enough data.
Please click GF Score to see more details on the GF Score's 5 Key Aspects of Analysis.
Based on the historical long-term performances among five valuation aspects, the GF Score is found to be closely correlated to the long-term performances of stocks. It ranges from 0 to 100, with 100 as the highest. GuruFocus divided GF Score into following 5 categories:
GF Score
Performance Potential and All-in-One Screener Examples (1)
(1) These are some simple examples. You can access our GF Score filter under All-in-One Screener’s Fundamental tab.
Lumentum Holdings GF Score Related Terms
MIL:1LITE vs MSI, CIEN, HPE: GF Score Comparison
For the Communication Equipment subindustry, Lumentum Holdings's GF Score, along with its competitors' market caps and GF Score data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Lumentum Holdings GF Score vs Hardware Industry
For the Hardware industry and Technology sector, Lumentum Holdings's GF Score distribution charts can be found below:
* The bar in red indicates where Lumentum Holdings's GF Score falls into.
Lumentum Holdings (MIL:1LITE) has a GF Score of 43 as of Jun. 28, 2026. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on Lumentum Holdings and its competitors. This is near median its historical median of 41.00. Over the past decade, Lumentum Holdings' GF Score has ranged from 34.00 to 56.00.
Is Lumentum Holdings' GF Score too high?
Lumentum Holdings' current GF Score of 43 is near median its 10-year median of 41.00. Over the past 10 years, this metric has ranged from a low of 34.00 to a high of 56.00. Overall, Lumentum Holdings has a GF Score™ of 43/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Lumentum Holdings' GF Score compare to MSI and CIEN?
Lumentum Holdings' GF Score of 43 can be compared against companies in the Hardware industry. Historically, Lumentum Holdings' own GF Score has ranged from 34.00 to 56.00 over the past decade. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good GF Score for a Hardware company?
A good GF Score depends on the Hardware industry context. However, GF Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high GF Score mean?
A high GF Score can signal that a stock is expensive relative to its fundamentals. GF Score is a stock performance ranking system developed by GuruFocus using five aspects of valuation. View historical data on Lumentum Holdings and its competitors. Lumentum Holdings's current GF Score is 43, which is near median its own 10-year median of 41.00. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Lumentum Holdings stock overvalued right now?
Based on GuruFocus' analysis, Lumentum Holdings (MIL:1LITE) is currently considered Significantly Overvalued. The stock's GF Value™ is €80.08, compared to a current price of €691.20 — trading 763.1% above its estimated fair value. The current GF Score is 43, which is near median its 10-year median of 41.00. Lumentum Holdings' overall GF Score™ is 43/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is GF Score calculated?
GF Score is calculated from a company's financial statements. For Lumentum Holdings (MIL:1LITE), the current GF Score is 43 as of Jun. 28, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Lumentum Holdings (MIL:1LITE) Overvalued in 2026?
Based on GuruFocus' analysis, Lumentum Holdings stock appears to be overvalued.
The current stock price of €691.20 is trading 763.1% above its estimated GF Value™ of €80.08.
GuruFocus considers Lumentum Holdings to be Significantly Overvalued.
Key valuation signals for MIL:1LITE:
GF Score: 43 (near median its 10-year median of 41.00)
GF Value™: €80.08 vs. price of €691.20 (763.1% above fair value)
No single metric tells the full story. See the MIL:1LITE stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Lumentum Holdings Inc is a California-based technology firm. The company provides two types of optical and photonic products: optical components that are used in telecommunications networking equipment, and commercial lasers for manufacturing, inspection, and life-science lab uses. Its segments are Optical Communications and Commercial Lasers. The firm is also expanding into new optical applications, such as 3-D sensing laser diode for consumer electronics. It generates maximum revenue from the OpComms segment. The OpComms segment products include a wide range of components, modules, and subsystems to support customers including carrier networks for access (local), metro (intracity), long-haul, and submarine (undersea) applications.
43GF Score
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