Financial Trends -- 8/10
Corning is in a powerful growth re-acceleration driven by AI-related demand for optical fiber,
cable, and connectivity in hyperscale data centers. Revenue grew +19.1% YoY in 2025 to $15.6B,
GAAP gross margins expanded +340 bps to 36.0%, core operating margin hit 19.3% (20.2% in Q4),
and core EPS grew +29% to $2.52. Enterprise optical sales surged +61% to $3.2B. FCF recovered
+45% to $1.4B. The Springboard plan was upgraded to $11B incremental annualized sales by 2028,
implying a ~$24B run rate vs. ~$16B today.
Weight: 25%
FY25 Revenue
$15.6B
+19.1% YoY | Accelerating +1,490 bps
FY25 Core Op Margin
19.3%
+180 bps YoY | 20.2% in Q4
FY25 Core EPS
$2.52
+29% YoY | 2x revenue growth
FY25 FCF
$1.4B
+45% YoY | 9.0% margin
Annual Financial Summary (FY ends December)
| Metric | FY2020 | FY2021 | FY2022 | FY2023 | FY2024 | FY2025 |
|---|---|---|---|---|---|---|
| Total Revenue ($M) | $11,303M | $14,082M | $14,189M | $12,588M | $13,118M | $15,629M |
| Rev YoY | — | +24.6% | +0.8% | -11.3% | +4.2% | +19.1% |
| Acceleration | — | — | -2,380 bps | -1,210 bps | +1,550 bps | +1,490 bps |
| GAAP Gross Margin | 31.2% | 36.0% | 31.8% | 31.2% | 32.6% | 36.0% |
| GM YoY Change | — | +480 bps | -420 bps | -60 bps | +140 bps | +340 bps |
| Core Gross Margin | 36.0% | 37.1% | 36.0% | 36.3% | 38.2% | 38.4% |
| Core GM YoY Change | — | +110 bps | -110 bps | +30 bps | +190 bps | +20 bps |
| GAAP Op Margin | 5.6% | 15.0% | 10.1% | 7.1% | 8.7% | 14.6% |
| Op Margin YoY Change | — | +940 bps | -490 bps | -300 bps | +160 bps | +590 bps |
| Core Op Margin | 15.1% | 17.4% | 16.8% | 16.5% | 17.5% | 19.3% |
| Core OM YoY Change | — | +230 bps | -60 bps | -30 bps | +100 bps | +180 bps |
| GAAP Diluted EPS | $0.54 | $1.28 | $1.54 | $0.68 | $0.58 | $1.83 |
| GAAP EPS YoY | — | +137% | +20% | -56% | -15% | +216% |
| Core Diluted EPS | $1.39 | $2.07 | $2.09 | $1.70 | $1.96 | $2.52 |
| Core EPS YoY | — | +49% | +1% | -19% | +15% | +29% |
Key trends -- annual
- Revenue re-accelerated strongly: From -11.3% in 2023 to +4.2% in 2024 to +19.1% in 2025, driven by Enterprise optical demand from GenAI/data center buildouts
- GAAP gross margin back to 2021 peak: 36.0% in 2025 (+340 bps YoY), with core operating margin reaching 19.3% -- Springboard target achieved a year early
- Core EPS grew 2x revenue: +29% YoY to $2.52, demonstrating powerful operating leverage. GAAP EPS surged +216% on mark-to-market recovery
- FCF recovery gaining momentum: $1.4B in 2025 (+45% YoY), up from $615M trough in 2023. Q4 2025 was the strongest quarter at $620M
Segment Revenue ($M, Annual)
| Metric | FY2020 | FY2021 | FY2022 | FY2023 | FY2024 | FY2025 |
|---|---|---|---|---|---|---|
| Optical Communications | $3,563M | $4,349M | $5,023M | $4,012M | $4,657M | $6,274M |
| OC YoY | — | +22.1% | +15.5% | -20.1% | +16.1% | +34.7% |
| -- Carrier | $2,612M | $3,200M | $3,760M | $2,871M | $2,678M | $3,079M |
| Carrier YoY | — | +22.5% | +17.5% | -23.6% | -6.7% | +15.0% |
| -- Enterprise | $951M | $1,149M | $1,263M | $1,141M | $1,979M | $3,195M |
| Enterprise YoY | — | +20.8% | +9.9% | -9.7% | +73.4% | +61.4% |
| Display Technologies | $3,172M | $3,700M | $3,306M | $3,532M | $3,872M | $3,697M |
| Display YoY | — | +16.6% | -10.6% | +6.8% | +9.6% | -4.5% |
| Specialty Materials | $1,884M | $2,008M | $2,002M | $1,865M | $2,018M | $2,211M |
| Specialty YoY | — | +6.6% | -0.3% | -6.8% | +8.2% | +9.6% |
| Life Sciences | $998M | $1,234M | $1,228M | $959M | $979M | $972M |
| Life Sciences YoY | — | +23.6% | -0.5% | -21.9% | +2.1% | -0.7% |
| Hemlock & Emerging | $465M | $1,243M | $1,662M | $1,446M | $1,278M | $1,460M |
| Hemlock YoY | — | +167.3% | +33.7% | -13.0% | -11.6% | +14.2% |
Enterprise Optical is the dominant growth engine: +61% YoY in 2025
to $3.2B, driven by GenAI data center demand. The Carrier business also returned to
growth (+15%). Display was down slightly (-4.5%) as price increases normalized. Specialty
Materials grew +9.6% with premium Gorilla Glass adoption. Life Sciences remains flat.
Quarterly Revenue Trajectory ($M, 12 Quarters)
Quarterly YoY growth accelerated from -6.4% in Q1 2024 to +20.9%
in Q3 2025, with Q4 2025 holding strong at +20.4%. The sequential acceleration from
Q1 2024 through Q3 2025 was approximately +2,730 bps. Five consecutive quarters above +16% YoY.
Quarterly Enterprise Optical Sales ($M)
Enterprise sales show phenomenal growth but are decelerating from
the 141-143% YoY peak in Q4 2024/Q1 2025 down to +29.7% in Q4 2025. This is a natural
normalization off a massive base. The absolute dollar trajectory remains strong: $890M quarterly
run rate vs. $283M two years ago -- a 3.1x increase.
Quarterly Margin Expansion (8 Quarters)
Core operating margin expanded every quarter from Q1 2024 (15.5%)
to Q4 2025 (20.2%) -- a remarkable +470 bps sequential expansion over 8 quarters.
The Q4 2025 reading of 20.2% achieves the Springboard target a full year ahead of plan.
EPS Trends (Annual & Quarterly)
Core EPS grew 29% YoY -- more than 2x the rate of revenue growth
(19%), demonstrating strong operating leverage. The quarterly trajectory is a clean
stair-step from $0.38 to $0.72 over 8 quarters. Management explicitly targets EPS growing
twice as fast as sales.
Free Cash Flow ($M, Annual)
Quarterly Free Cash Flow ($M)
FCF nearly doubled from the 2023 trough ($615M) to $1,413M in 2025.
Q4 2025 FCF of $620M was the strongest quarter in 2 years. FCF margin expanded from
4.9% to 9.0%. Seasonally negative Q1 is typical for Corning. CapEx set to rise to ~$1.7B
in 2026 for capacity expansion, but customer prepayments (Meta $6B deal) help offset.
Share Count & Debt (Annual)
| Metric | FY2020 | FY2021 | FY2022 | FY2023 | FY2024 | FY2025 |
|---|---|---|---|---|---|---|
| Basic Shares (M) | 768 | 846 | 847 | 853 | 857 | 858 |
| Diluted Shares (M) | 772 | 844 | 857 | 859 | 869 | 871 |
| Diluted YoY | — | +9.3% | +1.5% | +0.2% | +1.2% | +0.2% |
| LT Debt ($M) | $7,838M | $6,989M | $6,687M | $7,206M | $6,885M | $7,630M |
| Current Debt ($M) | $158M | $55M | $224M | $320M | $326M | $804M |
| Total Debt ($M) | $7,996M | $7,044M | $6,911M | $7,526M | $7,211M | $8,434M |
| Total Debt YoY | — | -11.9% | -1.9% | +8.9% | -4.2% | +17.0% |
- Shares essentially flat: +0.2% dilution in 2025. The large 2020-2021 jump was from the Samsung SDI preferred stock conversion. Buybacks have resumed
- Debt increased 17% in 2025 vs. revenue +19.1% -- roughly in-line growth. Average maturity is ~21 years (one of the longest tenors in the S&P 500), minimizing refinancing risk. Increase funds Springboard capacity expansion
Penalty / Modifier Assessment
| Factor | Impact | Detail |
|---|---|---|
| Negative FCF | 0 | FCF was +$1,413M in 2025, growing +45% YoY |
| Dilution >10% | 0 | Shares +0.2% YoY; buybacks have resumed |
| Rev growing but op income declining | 0 | OpInc grew +101% YoY ($1,135M to $2,279M) |
| Debt growing faster than revenue | 0 | Debt +17% vs. revenue +19.1%; not persistent |
Total penalty: 0 pts. No penalty modifiers triggered.
FCF positive, minimal dilution, operating income growing, debt roughly in-line with revenue.
Score rationale
Score of 8/10 reflects strongly positive financial trends across revenue, margins, earnings, and FCF, all driven by AI-related demand in optical connectivity.
Positives (supports 8+):
- Revenue strongly accelerating: +19.1% YoY in 2025 after +4.2% in 2024, with 5 consecutive quarters above +16% YoY
- Core operating margin reached 19.3% for FY25, hitting 20.2% in Q4 -- Springboard target achieved a year early
- Core EPS grew +29% (2x revenue), demonstrating powerful operating leverage
- Enterprise optical surged +61% to $3.2B, with Carrier also returning to growth
- FCF grew +45% to $1.4B with margin expanding to 9.0%
- Springboard plan upgraded to $11B incremental annualized sales by 2028
- Customer-funded capacity (Meta $6B deal) de-risks expansion
- No penalty modifiers triggered
Negatives (prevents 9-10):
- Enterprise optical YoY growth decelerating from 140%+ peak to +30% as base grows
- Display Technologies revenue was down -4.5% in 2025
- Life Sciences remains flat (-0.7% YoY)
- FCF margin at 9.0% still well below 2021 peak of 12.6%
- Debt increased 17% to fund expansion
Data sourced from Daloopa and Corning earnings releases (FY2020 through Q4 2025). All financials in USD. Fiscal year ends December.