Corning's deep expertise in glass science and manufacturing processes creates high barriers to entry. This allows them to develop specialized materials for demanding applications.

↑AI-Driven Optical Demand

The surge in AI and hyperscale data center growth fuels demand for Corning's optical fiber and components. This positions them to benefit from a secular trend.

↑Diversified End Markets

Beyond AI, Corning's presence in solar, life sciences, and automotive provides resilience. This diversification mitigates reliance on any single sector's performance.

INVESTMENT RISKS

↓AI Spending Rationalization

A potential slowdown or 'rationalization' in AI spending could temper the rapid growth seen in optical demand. This might impact future revenue streams.

↓Market Volatility

Stock price fluctuations, like the recent 4.2% drop, indicate sensitivity to market sentiment and investor expectations. This can create short-term uncertainty.

↓Competitive Pressures

While proprietary technology is a moat, intense competition in the hardware and equipment sectors could emerge. New entrants or established players might challenge market share.

Base case

GLW base case PE valuation

A base case PE valuation for GLW estimates a fair value of about $175.97 per share, against a current price of $179.2. The model assumes 20.0% annual earnings growth, a 50x target PE multiple, and a 10% discount rate.

Intrinsic Value

$175.97

Margin of safety

-1.8%

Expected annual return

-0.4%

Base case assumptions: 20.0% annual earnings growth, 50x target PE, 10% discount rate, 5 year projection. Data as of 2026-06-12.

This base case uses default assumptions and is not financial advice. The fair value changes significantly when the target PE or earnings growth rate changes. Open the calculator to set your own assumptions and see the full sensitivity range.

Customize the GLW PE valuation

Adjust the target PE, earnings growth, and discount rate to see how the fair value and margin of safety for Corning Incorporated respond.

Open PE Calculator for GLW

Or try DCF Valuation for GLW →

Company Overview

Corning Incorporated is a global enterprise operating across five key business areas: display technologies, optical communications, environmental solutions, specialty materials, and life sciences. Its Display Technologies division manufactures glass substrates essential for liquid crystal displays and organic light-emitting diode screens, which are integrated into consumer electronics such as televisions, laptops, desktop monitors, tablets, and handheld devices. The Optical Communications segment provides a comprehensive range of products, including optical fibers and cables, alongside various hardware and equipment like cable assemblies, fiber optic connectors, optical components, couplers, network closures, interface devices, and other accessories. This segment serves commercial enterprises, government bodies, and individual consumers alike. The Specialty Materials division develops and produces a diverse portfolio of items, including material formulations for glass, glass ceramics, and crystals. It also offers precision measurement instruments, software, ultra-thin and ultra-flat glass wafers and substrates, tinted eyewear, and products for radiation protection. This division caters to sectors such as mobile consumer electronics, optics and consumables for semiconductor manufacturing, aerospace and defense optics, radiation shielding applications, sunglass production, and telecommunications components. Corning's Environmental Technologies segment is responsible for ceramic substrates and filtration systems, crucial for controlling emissions in mobile, gasoline, and diesel engine applications. Within the Life Sciences segment, the company supplies a variety of laboratory products. These include consumables like plastic vessels, liquid handling plastics, specialized surfaces, cell culture media, and serums, as well as general labware and equipment, all marketed under prominent brands such as Corning, Falcon, Pyrex, and Axygen. Originally founded in 1851 as Corning Glass Works, the company adopted its current name, Corning Incorporated, in April 1989. Its corporate headquarters are situated in Corning, New York.

Financial Metrics — GLW PE Stock Valuation Data

PE Ratio (TTM)

85.4x

PEG Ratio

0.27

Earnings Yield

1.17%

ROE (TTM)

15.6%

Revenue/Share (TTM)

$18.92

Dividend Yield

0.63%

Debt/Equity

0.76x

Frequently Asked Questions

What is the PE ratio of GLW?

The trailing twelve-month PE ratio of GLW reflects how much investors pay per dollar of Corning Incorporated's earnings. This metric is most useful when compared to Hardware, Equipment & Parts peers and the company's own historical range.

Is GLW overvalued based on PE ratio?

GLW's PE of 85.4x combined with a PEG ratio of 0.27 provides a growth-adjusted perspective. A PEG below 1.0 suggests GLW may be undervalued relative to its earnings growth rate. Keep in mind that PE-based valuation works best for profitable, mature companies — for high-growth or cyclical Hardware, Equipment & Parts, a DCF analysis may be more appropriate.

How do I value GLW stock using PE ratio?

To value Corning Incorporated using PE: (1) Compare the current PE (85.4x) against the Hardware, Equipment & Parts median to assess relative pricing, (2) check the PEG ratio (0.27) to adjust for growth expectations, (3) review the 5-year PE range to identify where the stock sits historically, and (4) estimate fair value by multiplying a target PE by forward EPS estimates. This relative approach complements DCF's absolute valuation.

What is the PEG ratio of GLW?

GLW's PEG ratio is 0.27, calculated by dividing the PE ratio (85.4x) by the expected earnings growth rate. A PEG below 1.0 is traditionally considered a sign of undervaluation — the market may not be fully pricing in the growth potential. Note that PEG accuracy depends on the reliability of growth estimates.

Should I use PE ratio or DCF for GLW stock valuation?

PE ratio gives a quick relative read — how GLW is priced versus Hardware, Equipment & Parts peers. DCF provides an absolute value based on projected free cash flows. For GLW, with a strong ROE of 15.6%, both methods are worth using — PE for a market-relative check, DCF to stress-test whether fundamentals justify the price. Each method has blind spots: PE ignores capital structure and cash flow quality, while DCF is sensitive to growth and discount rate assumptions.

Learn More

See GLW DCF Valuation → — Intrinsic value via Discounted Cash Flow analysis
PE Methodology — Step-by-step guide to PE ratio stock valuation
DCF Methodology — Guide to discounted cash flow analysis
PE Ratio — Understanding the price-to-earnings ratio
Intrinsic Value — How to evaluate stock fair value

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P/E and DCF value GLW with different methods and assumptions, so the two conclusions can differ. Compare the DCF intrinsic value.

Price as of 2026-06-12. Financial data from Financial Modeling Prep (trailing twelve months) · Valuation methodology by Charlie Wang.

This is an estimate, not investment advice.