GLW · Q4 2025 Earnings

Bullish

Corning Inc.

Reported October 28, 2025

30-second summary

30-second take: Corning closed Q3 FY2025 with core sales of $4.27B (+14% YoY) and core EPS of $0.67 (+24% YoY), with core operating margin expanding 130 bps to 19.6%. Management guided Q4 FY2025 to ~$4.35B core sales with core EPS of $0.68–$0.72, and now expects to hit the 20% Springboard operating margin target in Q4 — a full year ahead of plan. Apple's $2.5B commitment to produce 100% of iPhone and Apple Watch cover glass at Corning's Kentucky facility was framed as a larger, longer-term Springboard growth driver, and enterprise optical grew 58% YoY on continued strong adoption of new Gen AI products.

Headline numbers

EPS

Q4 FY2025

$0.67

Revenue

Q4 FY2025

$4.10B

+21.0% YoY

Gross margin

Q4 FY2025

37.1%

Operating margin

Q4 FY2025

14.4%

Key financials

Q4 FY2025

Metric	Q4 FY2025	YoY	Q2 FY2025	QoQ
Revenue	$4.10B	+21.0%	$3.86B	+6.2%
EPS	$0.67	—	$0.60	+11.7%
Gross margin	37.1%	—	38.4%	-130bps
Operating margin	14.4%	—	19.0%	-460bps

Guidance

Q4 FY2025 revenue narrowly missed prior $4.2B guide at $4.1B, but EPS beat at $0.67 (top of range); forward Q1 FY2026 guidance raised meaningfully with 15% YoY sales and 26% YoY EPS growth, signaling operational momentum despite continued solar ramp headwinds.

Guidance is issued for both next quarter and the full year. Both may appear below.

Actuals vs prior guidance

Metric	Period	Prior guide	Actual	Δ	Result
Revenue	Q4 FY2025	$4.2 billion	$4.1 billion	-$0.1 billion below guide	Beat
EPS (non-GAAP)	Q4 FY2025	$0.63 to $0.67	$0.67	at high end of guide	Met

New guidance

Metric	Period	Guide	YoY
Core sales YoY growth	Q1 FY2026	approximately 15%	approximately 15%
Core EPS YoY growth	Q1 FY2026	about 26%	about 26%
Revenue	Q1 FY2026	$4.2 to $4.3 billion	—
EPS (non-GAAP)	Q1 FY2026	$0.66 to $0.70	—
Solar ramp impact on Core EPS	Q1 FY2026	approximately 3 to 5 cents headwind	—
Capital expenditures	FY 2026	about $1.7 billion	—

Segment performance

Q4 FY2025

Segment	Q4 FY2025	YoY
Optical Communications	$1.652B	+33.0%
Display	$0.939B	-7.0%
Specialty Materials	$0.621B	+13.0%
Automotive	$0.454B	+6.0%
Life Sciences	$0.242B	-1.0%
Hemlock and Emerging Growth Businesses	$0.364B	+46.0%

Platform metrics

Q4 FY2025

Segment	Q4 FY2025
Optical Communications Enterprise Sales Growth	58% YoY
Core Sales Growth	14% YoY
Core EPS Growth	24% YoY

Profitability

Q4 FY2025

Segment	Q4 FY2025
Core Operating Margin	19.6%
Core ROIC	13.4%
Adjusted Free Cash Flow	$535 million
Operating Cash Flow	$784 million

Management tone

Specialty Materials has been explicitly elevated as a growth vector. Per Weeks, Apple's $2.5B commitment to produce 100% of iPhone and Apple Watch cover glass at Corning's Kentucky facility "creates a larger, longer-term opportunity," and the press release header frames it as adding "to Springboard growth opportunity through 2026 and beyond." Specialty Materials grew 13% YoY in Q3 with net income up 57%.

Management framed Q4 as continued acceleration, not normalization, guiding to approximately $4.35B in core sales with core EPS growing faster than sales to a range of $0.68–$0.72 — signaling confidence in incremental flow-through as the 20% margin target is reached.

The U.S. advanced manufacturing footprint was again positioned as a forward catalyst. Management has previously flagged "an additional growth driver to emerge in the coming months as new and existing customers seek to leverage our large U.S. advanced manufacturing footprint" — the Apple Kentucky commitment is the most concrete proof point to date.

Recurring themes management leaned on this quarter:

AI-driven optical communications demand accelerationCustomer financial partnership model with prepayments and long-term commitmentsTransformation from margin recovery to profitable growth platformDomestic US manufacturing and supply chain securitySignificant cash generation from higher-margin, customer-funded expansionPortfolio diversification into solar and edge applications

Risks management surfaced:

Heavy duty diesel market weakness in North America and EuropeLight duty vehicle production forecast flat to down slightly for 2026Currency headwinds in display segment (yen weakness)Timing of secular trends and market adoption of innovations (probabilistic risk in original plan)Potential down cycles in certain market segments

Q&A highlights

Ramzi Mohan · Bank of America

Are similar long-term agreements with other major customers already baked into the Springboard plan? Is the optical fiber market experiencing supply constraints, and how might pricing evolve given constraints?

Similar agreements to META are being concluded with other major customers of comparable size and scale, but financial impact won't materialize until 2027-2028 and not fully included in Springboard. No meaningful fiber supply constraints; robust demand for new high-density products drives capacity expansion. Pricing should improve over time as innovations enable better performance in half the space with lower installation costs.

Similar agreements are of similar size and scale to META agreementFinancial impact from other agreements expected to begin in 2027 and continue through 2028New products enable better optical performance in half the space with significantly reduced installation costExpect profitability to improve over time as manufacturing of products is mastered

Josh Spector · UBS

Will META disproportionately buy more from Corning post-agreement compared to other hyperscalers? Is capacity being added to match increased sales or will capacity tighten?

Corning is concluding several similar-size agreements with other major customers, so viewing this as the overall pie getting bigger rather than META taking disproportionate share. Enterprise business grew 60% in 2025 with hyperscaler portion growing at nearly double that rate. New products driving increased demand relative to competitors, positioning Corning favorably.

Enterprise business was ~$3 billion in 2025Roughly two-thirds of enterprise is hyperscalersTotal enterprise business grew 60% in 2025Hyperscale portion grew at nearly double that rate

Meta Marshall · Morgan Stanley

Will META deal be accounted for in enterprise or carrier line item? What is the CapEx guidance for 2026?

META deal will be entirely in enterprise business (not carrier). 2026 CapEx guidance of $1.7 billion, up from $1.3 billion in 2025. Depreciation at ~$1.3 billion level. Optical business will receive majority of capital allocation. Some customer agreements provide upfront payments or take-or-pay mechanisms that offset capital costs.

2026 CapEx guidance: $1.7 billion2025 CapEx: ~$1.3 billionDepreciation level: ~$1.3 billionMETA deal 100% in enterprise segment

George Notter · Wolf Research

Does the $1.7B CapEx include META-specific capital? How much of capital expansion is customer-funded vs. on Corning's balance sheet? Will non-contracted customers face price increases?

The $1.7B integrates all customer agreements expected to be completed. Some capital is funded via customer upfront payments (refundable or take-or-pay mechanics) but specifics of individual agreements not disclosed. Non-contracted carrier customers will not face price increases as they are unrelated to new product sets; focus is securing assured revenue streams for dedicated capacity to rapid-scaling customers.

$1.7B CapEx integrates all planned customer agreementsSome customer agreements include upfront payments or take-or-pay mechanisms offsetting capitalDetails of specific agreements not disclosedNon-contracted customers (primarily carriers) not expected to see price increases

Tim Long · Barclays

Has cyclicality of carrier business changed with increased data center interconnect penetration? On display, with yen weakness, are there scenarios requiring further price increases beyond current actions?

Carrier business grew 15% in 2025, majority from data center interconnect. This DCI-driven growth is expected to continue, potentially reducing historical cyclicality. Display business targeting $900-950M net income; exceeded that in 2025. Has hedges in place; if yen weakens beyond 120 assumption, will adjust prices or take other actions to maintain profitability targets.

Carrier business grew 15% in 2025Majority of carrier growth from data center interconnectDisplay net income target: $900-950 millionDisplay performed above target in 2025

Answers to last quarter's watch list

Optical Communications enterprise growth. Enterprise optical grew 58% YoY in Q3 on continued strong adoption of new Gen AI products, supporting the GenAI scale-up framing. Status: Resolved positively

The "U.S. manufacturing growth driver" that management said will emerge in the coming months. Apple's $2.5B commitment to make 100% of global iPhone and Apple Watch cover glass at Corning's Kentucky facility landed as the headline proof point, explicitly cited as adding to Springboard growth opportunity through 2026 and beyond. Status: Resolved positively

Hemlock Q3 wafer revenue activation. Hemlock + Emerging Growth grew 46% YoY to $364M in Q3, consistent with the solar ramp accelerating. Status: Resolved positively

Q4 core operating margin reaching the 20% Springboard target. Management explicitly guided Q4 to ~20% operating margin, a full year ahead of plan, building on the 19.6% Q3 print. Status: On track

What to watch into next quarter

Q4 FY2025 core operating margin landing at or above 20%. A Q4 print below 19.5% would suggest ramp drag is bigger than guided. A print at or above 20% confirms the Springboard margin target pulled in a year early.

Enterprise optical YoY growth rate. Q3 enterprise grew 58%. Sustained 50%+ growth into Q4 supports the multi-customer GenAI thesis; deceleration into the 30s would suggest pull-forward rather than recurring pattern.

Hemlock/solar ramp profitability. Prior-quarter guidance flagged $0.02–$0.03 of ramp costs; watching whether Q4 solar wafer sales offset that drag is key to gauging trajectory into 2026.

Specialty Materials follow-through on the Apple Kentucky commitment. Whether net income margin in Specialty continues to expand at the pace shown in Q3 (+57% YoY) will indicate how much of the $2.5B commitment translates to near-term P&L.

Display segment under yen 120 assumption. Management runs Display on a $900–$950M net income target; sustained yen weakness beyond the 120 core rate would test the hedge book and pricing actions.

Sources

Corning Inc. Q3 2025 earnings press release, filed October 28, 2025 — https://www.sec.gov/Archives/edgar/data/24741/000002474125000109/glw-20251028xex99.htm

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