Corning Incorporated (GLW) Stock Fundamentals, Analysis & Risk Signals

Health score, price, valuation, risk signals, and key metrics at a glance.

Corning Incorporated

NYSE•Technology•Electronic Components

$126.14+2.94(0.02%)After hours

Market Cap

$106.32B

P/E

49.5x

P/S

6.0x

P/B

7.8x

Corning Incorporated operates in optical communications, display, specialty materials, automotive, and life sciences businesses in the United States, Canada, Mexico, Japan, Taiwan, China, South Korea, Germany, and internationally. The company provides optical fibers and cables; and hardware and equipment products, such as cable assemblies, fiber optic hardware and connectors, optical components and couplers, closures, network interface devices, and other accessories for the telecommunications industry, businesses, governments, and individuals. It also offers glass substrates for flat panel displays, including liquid crystal displays and organic light-emitting diodes that are used in televisions, notebook computers, desktop monitors, tablets, and handheld devices. In addition, it manufactures products that offer material formulations for glass, glass ceramics, crystals, precision metrology instruments, and software, as well as glass wafers and substrates, tinted sunglasses, and radiation shielding products for markets, such as mobile consumer electronics, semiconductor equipment optics and consumables, aerospace and defense optics, radiation shielding products, sunglasses, and telecommunications components. Further, the company provides ceramic substrates and filter products for emissions control in mobile, gasoline, and diesel applications, as well as technical glass and optic products and solutions for the interior and exterior of vehicles. Additionally, it offers laboratory products, including plastic vessels, liquid handling plastics, specialty surfaces, cell culture media, and serum, as well as general labware, and glassware and equipment under the Corning, Falcon, PYREX, and Axygen brands. It also offers polysilicon products and pharmaceutical glass tubing and vials. The company was formerly known as Corning Glass Works and changed its name to Corning Incorporated in April 1989. Corning Incorporated was founded in 1851 and is headquartered in Corning, New York.

How this company scores

ExcellentMetricSide Score: 91/100

Strongest: Profitability (25/25); weakest: Balance Sheet & Red Flags (20/25).

Profitability25/25

Growth24/25

Balance Sheet & Red Flags20/25

Cash & Earnings Quality22/25

Strengths

Growing revenueRising free cash flowStrong marginsHigh ROE

No red flags in the last 8 quarters.

Valuation vs. 5-year range

Today's multiple positioned against its own trailing range — a visual premium/discount check.

P/E · 49.5x5y range 13.6x – 247.2x

Currently near its 20-quarter median.

P/S · 6.0x5y range 1.7x – 13.0x

Currently above its 20-quarter median.

P/B · 7.8x5y range 2.2x – 17.5x

Currently above its 20-quarter median.

Price & Volume

Market Cap $106.32B

Metrics at a Glance

as of September 2026

Revenue & Profit

Revenue, EBITDA, operating income, net income, EPS, and shares

TTM Revenue: $17.72B
Q. Revenue: $4.86B
TTM EBITDA: $4.32B
TTM Op. Income: $2.92B
Q. Op. Income: $911.00M
TTM Net Income: $2.15B
Q. Net Income: $680.00M
EPS: $0.79
Shares Out.: $863.00M

$17.72B in TTM revenue grew 18.8% YoY, reaching $4.86B last quarter. TTM EBITDA of $4.32B and TTM operating income of $2.92B show growth is flowing through to the bottom line. TTM net income of $2.15B means revenue is converting into profit. Across the last 8 quarters, TTM revenue has risen for 7 consecutive quarters — an improving trend.

Margins

Gross, EBITDA, operating, and net margin trends

Gross Margin: 37.3%
EBITDA Margin: 26.4%
Op. Margin: 18.8%
Net Margin: 14.0%

Op. margin of 18.8% is up 4.4% YoY — cost efficiency is improving. Net margin at 14.0% and gross margin of 37.3% show how much of each revenue dollar survives to profit. Across the last 8 quarters, operating margin has risen for 2 consecutive quarters — an improving trend.

Price Ratios

P/E, P/S, P/B, EV/EBITDA, FCF yield, and earnings yield

P/E Ratio: 49.5x
P/S Ratio: 6.0x
P/B Ratio: 7.8x

At 49.5x P/E, the stock trades above typical market levels — the market expects above-average growth. P/S of 6.0x and P/B of 7.8x provide additional context. Use the growth and margin sections to judge whether the multiple is justified. Over the past year, P/E is down 2% — an improving trend.

Assets & Liabilities

Total assets, cash, debt, book value, and leverage

Total Assets: $34.13B
Cash: $2.54B
Long-Term Debt: $7.27B
Book Value: $13.67B
D/E Ratio: 0.5
Debt/EBITDA: 5.7

With $34.13B in assets and $7.27B in long-term debt, D/E is 0.5and book value is $13.67B — a conservative capital structure with a cushion to weather downturns. Across the last 8 quarters, debt/equity has fallen for 2 consecutive quarters — an improving trend.

Cash Flow

Operating cash flow, free cash flow, FCF margin, and earnings quality

Op. Cash Flow: $1.06B
TTM Free Cash Flow: $2.46B
FCF Margin: 13.9%
FCF / Net Income: 1.1

TTM FCF of $2.46B on $1.06B in operating cash flow. The FCF / Net Income ratio of 1.1x means free cash flow covers net income — earnings are backed by cash. Across the last 8 quarters, free cash flow has risen for 4 consecutive quarters — an improving trend.