Corning Incorporated stock research
FY2025 Q4
Corning (GLW) Gross Margin — Quarter Ended Dec 31, 2025
In the current quarter, revenue was higher than both the preceding quarter and the same period a year earlier. Gross profit matched the prior quarter level but was above the year-ago figure, while cost of revenue increased from the prior quarter, resulting in a gross margin that weakened sequentially but improved compared to the same quarter last year.
Gross margin takeaway
Quarter ended Dec 31, 2025 · FY2025 Q4
In the current quarter, revenue was higher than both the preceding quarter and the same period a year earlier. Gross profit matched the prior quarter level but was above the year-ago figure, while cost of revenue increased from the prior quarter, resulting in a gross margin that weakened sequentially but improved compared to the same quarter last year.
- The strongest observable margin driver is the year-over-year improvement in gross margin. The current quarter's gross margin is higher than the same quarter one year earlier, meaning a larger portion of revenue remained after deducting cost of revenue.
- Compared to the prior quarter, gross margin weakened as cost of revenue grew at a faster pace than revenue. However, relative to the same quarter a year ago, gross margin improved, supported by a higher revenue base.
Gross margin snapshot
The selected quarter's reported revenue, gross profit, direct costs, and margin comparisons.
Gross margin
35.5%
Gross profit
$1.5B
Revenue
$4.2B
Cost of revenue
$2.7B
Quarter-over-quarter change
-1.6 pts
Year-over-year change
+1.3 pts
Quarterly gross margin trend
A four-quarter view of the revenue and direct-cost bridge behind gross margin.
| Period | Revenue | Gross profit | Cost of revenue | Gross margin |
|---|---|---|---|---|
| Mar 31, 2025 | $3.5B | $1.2B | $2.2B | 35.2% |
| Jun 30, 2025 | $3.9B | $1.4B | $2.5B | 36.0% |
| Sep 30, 2025 | $4.1B | $1.5B | $2.6B | 37.1% |
| Dec 31, 2025 | $4.2B | $1.5B | $2.7B | 35.5% |
Quarterly comparisons
Compare the selected margin with the preceding quarter and the same fiscal quarter one year earlier.
Previous-quarter change
Sep 30, 2025
-1.6 pts
Year-over-year change
Dec 31, 2024
+1.3 pts
What the margin says
Filing-constrained interpretation of margin direction, comparisons, and what to monitor next.
The strongest observable margin driver is the year-over-year improvement in gross margin. The current quarter's gross margin is higher than the same quarter one year earlier, meaning a larger portion of revenue remained after deducting cost of revenue.
Compared to the prior quarter, gross margin weakened as cost of revenue grew at a faster pace than revenue. However, relative to the same quarter a year ago, gross margin improved, supported by a higher revenue base.
Monitor the trend in cost of revenue relative to revenue, as the sequential increase in costs outpaced revenue growth, leading to margin compression.