Corning (WBO:GLW) PEG Ratio: N/A (As of Jul. 02, 2026)


WBO:GLW Corning Inc WBO:GLW
62 GF Score
Price €196.54
GF Value €54.28
Valuation Significantly Overvalued
! 7 Warning Signs
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What is Corning PEG Ratio?

PE Ratio without NRI / 5-Year EBITDA Growth Rate*

PEG Ratio is defined as the PE Ratio without NRI divided by the growth ratio. The growth rate we use is the 5-Year EBITDA growth rate. As of today, Corning's PE Ratio without NRI is 85.05. Corning's 5-Year EBITDA growth rate is -1.20%. Therefore, Corning's PEG Ratio for today is N/A.

* The 5-Year EBITDA Growth Rate is the 5-year average EBITDA per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.


The historical rank and industry rank for Corning's PEG Ratio or its related term are showing as below:


During the past 13 years, Corning's highest PEG Ratio was 342.57. The lowest was 1.39. And the median was 2.53.


WBO:GLW's PEG Ratio is not ranked *
in the Hardware industry.
Industry Median: 2.27
* Ranked among companies with meaningful PEG Ratio only.

Peter Lynch thinks a company with a P/E ratio equal to its growth rate is fairly valued.


Corning  (WBO:GLW) PEG Ratio Explanation

To compare stocks with different growth rates, Peter Lynch invented a ratio called PEG Ratio. PEG Ratio is defined as the P/E ratio divided by the growth ratio. He thinks a company with a P/E ratio equal to its growth rate is fairly valued. Still he said he would rather buy a company growing 20% a year with a P/E of 20, instead of a company growing 10% a year with a P/E of 10.


Corning PEG Ratio Related Terms


Corning PEG Ratio Historical Data

* Premium members only.

The historical data trend for Corning's PEG Ratio can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

Corning PEG Ratio Chart

Corning Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
PEG Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 1.53 9.84 0.00 0.00

Corning Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
PEG Ratio Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 0.00 0.00 0.00 0.00 0.00

WBO:GLW vs APH, TEL, FLEX: PEG Ratio Comparison

For the Electronic Components subindustry, Corning's PEG Ratio, along with its competitors' market caps and PEG Ratio 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.


Corning PEG Ratio vs Hardware Industry

For the Hardware industry and Technology sector, Corning's PEG Ratio distribution charts can be found below:

* The bar in red indicates where Corning's PEG Ratio falls into.


WBO:GLW
62GF Score
Corning Inc WBO:GLW
PEG Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Corning PEG Ratio Calculation

PEG Ratio is defined as the PE Ratio without NRI divided by the growth ratio. The ratio we use is the 5-Year EBITDA growth rate.

Corning's PEG Ratio for today is calculated as

PEG Ratio=PE Ratio without NRI/5-Year EBITDA Growth Rate*
=85.045434876677/-1.20
=N/A

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

* Note: The 5-Year EBITDA Growth Rate is the 5-year average EBITDA per share growth rate. While the denominator is a percentage, we use the whole number as opposed to the decimal form for the calculation. For example, 5% would be shown as 5 as opposed to 0.05. If it's smaller than or equal to 0, then the PEG Ratio is not calculated.

Is Corning (WBO:GLW) Overvalued in 2026?

Based on GuruFocus' analysis, Corning stock appears to be overvalued. The current stock price of €196.54 is trading 262.1% above its estimated GF Value™ of €54.28. GuruFocus considers Corning to be Significantly Overvalued.

Key valuation signals for WBO:GLW:

  • PEG Ratio: N/A
  • GF Value™: €54.28 vs. price of €196.54 (262.1% above fair value)
  • GF Score™: 62/100 with 7 warning signs

No single metric tells the full story. See the WBO:GLW stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Corning Business Description

Address One Riverfront Plaza, Corning, NY, USA, 14831
Corning is a provider of glass, ceramics, and optical fiber across six distinct end markets. Corning's largest segments by revenue are display glass for TVs and optical fiber for telecom networks and data centers. It also provides cover glass for smartphones as well as filters and substrates and glass for cars, produces pharmaceutical glass, and produces polysilicon for solar panels. Corning is a US producer and is vertically integrated across its products and markets.
62GF Score

Get the complete analysis for WBO:GLW

PEG Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€196.54
Price
€54.28
GF Value