Corning
GLWNYSEUSD
- Source valuation snapshot. Not a live recalculation.
- Latest filed annual earnings; price snapshot date unavailable. Not forward P/E.
- Diluted earnings per share from the latest filed annual.
- $112.13 Prior regular-session close from the quote source.
- $116.50–$123.87 Regular-session low and high so far today.
- 10.2M Regular-session shares traded · Nov 11, 4:03 PM ET.
- Jan 27 projected Projected for 2027-01-27 from the company’s own results filings (SEC 8-K Item 2.02). The company has not confirmed the date.
- $77.39–$271.78 52-week trading low and high returned by the quote source.
Understand the Business
Why the Stock Moved
Period-matched expectations history is not yet available. Current metrics are not a substitute for a historical explanation.
The core investment thesis
Own GLW if its hard-to-replicate glass, ceramics and optical-fiber process know-how turns the AI/broadband, display, mobile, auto and life-sciences cycles into higher-utilization, higher-margin cash growth rather than another short rebound.
GLW price history
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Investment thesis
What must happen next
Bandwidth-intensive AI/data-center and broadband architectures keep requiring more optical fiber, cable and connectivity, so Corning’s optical manufacturing base stays relevant rather than being designed out by alternative network architectures.StrengtheningMateriality: High
GAAP annual revenue rose from $13.118 billion in FY2024 to $15.629 billion in FY2025, a recovery consistent with end-market demand reaccelerating. If this holds, Corning’s largest growth vector can keep filling capacity; if it breaks, revenue recovery loses its most important structural demand driver.
Watch: Hyperscalers or telecom carriers standardize on lower-fiber architectures, extended copper, or competing optical-connectivity platforms that materially reduce Corning content per network build.
Supporting sources
Source notes are factual paraphrases; read the original disclosures below.
GAAP annual revenue rose from $13.118 billion in FY2024 to $15.629 billion in FY2025, a recovery consistent with end-market demand.
Open source ↗Corning’s specialized glass and ceramic process know-how, plus customer qualification requirements, preserves enough pricing and mix power for sales growth to show up in gross profit rather than being competed away.StrengtheningMateriality: High
GAAP annual gross_profit increased from $4.276 billion in FY2024 to $5.621 billion in FY2025. This is the difference between a commodity-volume rebound and a value-creating materials franchise.
Watch: Display-panel makers force broad glass-substrate price concessions or qualify lower-cost suppliers such as AGC, NEG or Chinese substrate producers.
Supporting sources
Source notes are factual paraphrases; read the original disclosures below.
GAAP annual gross_profit increased from $4.276 billion in FY2024 to $5.621 billion in FY2025.
Open source ↗Higher factory utilization and cost discipline convert incremental demand into operating leverage, rather than allowing fixed costs, energy, labor or underused capacity to absorb the recovery.StrengtheningMateriality: Medium
GAAP annual operating_income increased from $1.135 billion in FY2024 to $2.279 billion in FY2025. Operating leverage determines whether Corning’s cyclical revenue rebound compounds shareholder earnings or merely restores sales.
Watch: A renewed downturn in display panels, telecom capex or consumer electronics leaves furnaces and fiber plants underutilized.
Supporting sources
Source notes are factual paraphrases; read the original disclosures below.
GAAP annual operating_income increased from $1.135 billion in FY2024 to $2.279 billion in FY2025.
Open source ↗Corning’s diversified, long-lived materials platforms generate enough operating cash through cycles to fund R&D, capacity and product transitions without relying primarily on balance-sheet expansion.HoldingMateriality: Medium
GAAP annual operating_cash_flow was positive in every full year shown from FY2022 through FY2025. If cash generation holds, Corning can keep investing through downturns; if it fails, the moat weakens and leverage risk rises.
Watch: A simultaneous downturn across optical, display, mobile devices, automotive and life sciences causes working-capital needs and underutilization to consume cash.
Supporting sources
Source notes are factual paraphrases; read the original disclosures below.
GAAP annual operating_cash_flow was positive in every full year shown from FY2022 through FY2025.
Open source ↗
Full investment case & evidence
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Original research
Bandwidth-intensive AI/data-center and broadband architectures keep requiring more optical fiber, cable and connectivity, so Corning’s optical manufacturing base stays relevant rather than being designed out by alternative network architectures. If this holds, Corning’s largest growth vector can keep filling capacity; if it breaks, revenue recovery loses its most important structural demand driver.
Corning’s specialized glass and ceramic process know-how, plus customer qualification requirements, preserves enough pricing and mix power for sales growth to show up in gross profit rather than being competed away. This is the difference between a commodity-volume rebound and a value-creating materials franchise.
Higher factory utilization and cost discipline convert incremental demand into operating leverage, rather than allowing fixed costs, energy, labor or underused capacity to absorb the recovery. Operating leverage determines whether Corning’s cyclical revenue rebound compounds shareholder earnings or merely restores sales.
Corning’s diversified, long-lived materials platforms generate enough operating cash through cycles to fund R&D, capacity and product transitions without relying primarily on balance-sheet expansion. If cash generation holds, Corning can keep investing through downturns; if it fails, the moat weakens and leverage risk rises.
All standing thesis claims
Original report summary
its hard-to-replicate glass, ceramics and optical-fiber process know-how turns the AI/broadband, display, mobile, auto and life-sciences cycles into higher-utilization, higher-margin cash growth rather than another short rebound.
Bull case and bear case
Bull case and bear case for Corning
Where the evidence on Corning stands: Holding on the latest evidence (Oct 13, 2026). Of its 4 thesis points, 3 strengthening and 1 holding.
Bull case: what the evidence supports
Bandwidth-intensive AI/data-center and broadband architectures keep requiring more optical fiber, cable and connectivity, so Corning’s optical manufacturing base stays relevant rather than being designed out by alternative network architectures.
Corning’s specialized glass and ceramic process know-how, plus customer qualification requirements, preserves enough pricing and mix power for sales growth to show up in gross profit rather than being competed away.
Higher factory utilization and cost discipline convert incremental demand into operating leverage, rather than allowing fixed costs, energy, labor or underused capacity to absorb the recovery.
Corning’s diversified, long-lived materials platforms generate enough operating cash through cycles to fund R&D, capacity and product transitions without relying primarily on balance-sheet expansion.
Bear case: what would count against it
Hyperscalers or telecom carriers standardize on lower-fiber architectures, extended copper, or competing optical-connectivity platforms that materially reduce Corning content per network build.
Display-panel makers force broad glass-substrate price concessions or qualify lower-cost suppliers such as AGC, NEG or Chinese substrate producers.
A renewed downturn in display panels, telecom capex or consumer electronics leaves furnaces and fiber plants underutilized.
Company research
Research on Corning
- Reporting · Corning's $2 Billion Stock Plan Does Not Mean Immediate Dilution
Corning can sell up to $2 billion of stock over time. Its prospectus assumes 12.1 million shares at a reference price, not a completed sale.
Thesis-Break Engine
Thesis-break watch · Corning
No break has crossed Corning’s thesis. Its break conditions are checked against every new filing as it lands.
MARKET + FINANCIAL SNAPSHOT
The numbers behind the thesis
What Changed
- MixedOther material event.
Corning filed an SEC 8-K on 2026-09-11: Other material event. It is a dated development that tests the current thesis.
- MixedRegulation FD disclosure.
Corning filed an SEC 8-K on 2026-09-04: Regulation FD disclosure. It is a dated development that tests the current thesis.
- MixedReported results of operations (earnings release).
Corning filed an SEC 8-K on 2026-07-28: Reported results of operations (earnings release). It is a dated development that tests the current thesis.
Risks / falsifiers
What could break the thesis
- Hyperscalers or telecom carriers standardize on lower-fiber architectures, extended copper, or competing optical-connectivity platforms that materially reduce Corning content per network build.
- Display-panel makers force broad glass-substrate price concessions or qualify lower-cost suppliers such as AGC, NEG or Chinese substrate producers.
- A renewed downturn in display panels, telecom capex or consumer electronics leaves furnaces and fiber plants underutilized.
- A simultaneous downturn across optical, display, mobile devices, automotive and life sciences causes working-capital needs and underutilization to consume cash.
GLW news
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Financial statements
GLW income statement
Annual filed results · USD · Oldest to newest. Margins are calculated from the reported figures.
GLW: quick answers
- When does Corning (GLW) report earnings next?
- Corning's next results are projected for January 27, 2027, from the dates of its own results filings with the SEC. The company has not confirmed the date. It last reported on October 27, 2026. Earnings calendar
- What is GLW's short interest?
- As of October 30, 2026, 16.6M GLW shares were sold short, 1.92% of its shares outstanding, up 3.5% from the count before. At the stock's average daily volume that is 1.6 days to cover. FINRA publishes the count twice a month. GLW short interest history
- Have members of Congress traded GLW?
- Reports made public in the last 90 days disclose 6 trades in GLW by 2 filers: 2 purchases and 4 sales. They are filed under the STOCK Act by members of Congress, the President and senior officials. Every disclosed GLW trade
- Which well-known investors own GLW?
- 4 of the 37 well-known funds tracked here reported GLW shares in their latest 13F filings. By share of the fund's portfolio: Whale Rock Capital, 4.6%; Lone Pine Capital (Stephen Mandel), 4.3%; Maverick Capital, 0.0%. Fund portfolios
GLW in well-known investors’ portfolios
4 of 37 funds reported GLW shares in their latest 13F filing. A 13F shows quarter-end positions and arrives up to 45 days later.
| Fund | Of its portfolio | Value | Change | Quarter |
|---|---|---|---|---|
| Whale Rock Capital | 4.6% | $571M | −2.8% | Q2 2026 |
| Stephen MandelLone Pine Capital | 4.3% | $697M | −26.6% | Q2 2026 |
| Maverick Capital | 0.01% | $1.2M | −98.7% | Q2 2026 |
| Ray DalioBridgewater Associates | 0.00% | $334K | New | Q2 2026 |