AfternsAfterns
Up or down this time?Oct 27 scheduled
0%0%

···

Corning Incorporated (GLW) earnings date & stock reaction

Corning Incorporated · IT

Corning Incorporated earnings date & time

Next earningsTue, October 27 around 8:00 AM ET, before the openscheduled

Schedule

Korea time (KST)
Tue, October 27
Reporting pattern
12 of last 12 before open
Typical move
±5.7% · 12-report avg

What the market expects

Consensus EPS

$0.87Coming in above this counts as a beat

Year-ago quarter
$0.67→+29.9%
Guided EPS
$0.78→$0.87+11.5%
Full earnings calendarFrom an earnings calendar · Schedule last checked October 14
Latest reportApr–Jun 2026 results· July 28, 2026 reported
EPS consensus $0.75 → $0.78 ▲ +3.5% beat
Post-earnings price move
Next-day move
-12.1%
After 5 days
+2.3%
Price around earnings
Around this report
Overlapped an FOMC holdThis report landed on a US Federal Reserve rate-decision day. Rate decisions move the whole market, so the move may reflect the decision, not just earnings. A cut is not always good or a hike always bad. Crisis cuts fell, and hikes in a strong economy often rose.Down 7% into earningsIn the 3 trading days before this report, the stock moved more than usual. A pre-earnings run-up can mean expectations were already priced in, a drop can mean bad news was priced in early. Read the post-earnings reaction with that in mind.
Earnings callStrong sales growth led by Optical Communications and improved profitability
“We grew core sales 17% to $4.74 billion and core EPS 30% to $0.78. We expanded core gross margin 120 basis points to 39.6% and core operating margin 190 basis points to 20.9%.”
· Ed Schlesinger, CFO
Positives
  • ▲Robust growth in Optical Communications
    • Optical Communications sales grew 32% vs last year to $2.07 billion this quarter.
    • Enterprise Networks sales increased by 65%, driving the segment's growth.
  • ▲Margin expansion and profitability
    • Core operating margin expanded 190 basis points vs last year to 20.9%.
    • Core gross margin improved 120 basis points vs last year to 39.6%.
  • ▲Surge in Solar segment revenue
    • Solar segment sales grew 90% vs last year to $438 million this quarter.
Concerns
  • ▼Decline in Life Sciences
    • Life Sciences and Emerging Growth Businesses sales fell 15% vs last year to $294 million.
  • ▼Increase in inventory levels
    • Inventories rose to $3.43 billion from $3.08 billion at the end of last year.
Based on the Jul 28, 2026 earnings release. Quotes are verbatim.

Corning Incorporated (GLW) rose the day after earnings in 5 of its last 12 reports (42%), moving ±5.7% on average. It has fallen despite beating the consensus estimate 5 times.

Up next day
5/12
42%
Fell despite growth
6/12
Good earnings ignored
Price when beating
-1.1%
avg over 9 beats
Price when missing
+3.3%
avg over 2 misses
Avg earnings move
±5.7%
typical swing on earnings
Biggest single move
-12.1%
'26.7 · largest reaction
🔑What actually moves this stock?

Even when EPS beat expectations, the stock fell 5 of the last 9 times. The number alone doesn't move it.

What really matters here
How fast optical revenue grows into AI datacenters
In finance terms: Optical revenue · guidance
Growth · revenue (YoY by quarter, latest right)
+17%
25-01(Dec qtr)
+16%
25-04(Mar qtr)
+19%
25-07(Jun qtr)
+21%
25-10(Sep qtr)
+20%
26-01(Dec qtr)
+20%
26-04(Mar qtr)
Holding steady · Growth is holding around +20%.
What to watch next report

When results drop, skip the EPS number. Check if the growth above holds or accelerates, and whether guidance beats expectations.

The real bar for this stock

Beating estimates isn't enough. Here's where the real surprise started.

Beat consensus 9 of 12 times
Median beat +3%. 5 of those beats still fell the next day.
Reports that rose beat by +5.4% (median). Reports that fell beat by just +2.1%
Roughly +5.4% was the bar this stock had to clear.

How this stock reacts to earnings

Traits seen across its recent earnings reactions

Even strong results barely move the stock
Up the next day 4 of 9 beats (44%)
Reaction is erratic and hard to predict
Avg -1.1% on a beat, +3.3% on a miss
vs IT sector avg (192 peers)
This
-0.8%
Sector
+1.0%
Avg next-day reaction

Earnings number vs guidance: which drives it?

How often the beat/miss matched the actual price move

This stock reacts more to guidance & expectations than the reported number
Moved opposite to results 6 of last 11 times (55%)
5xBeat but fell
Even a beat sells off if guidance disappoints
1xMissed but rose
Even a miss rebounds if guidance reassures
Fell despite growth6/12

5/9 beats fell next day · watches Optical revenue · guidance

Next-day reaction
  • Jun 2026 report-12.1%
  • Mar 2026 report-8.9%
  • Dec 2025 report-5.0%
  • Sep 2025 report-3.3%
  • Jun 2025 report+11.9%
  • Mar 2025 report+0.8%

Earnings timeline · bars = next-day move, ▲▼ = beat/miss

Apr–Jun 2026 results
Reported 2026-07-28
Next-day move
-12.1%
After 5 days +2.3%
EPS consensus $0.75 → $0.78 ▲ +3.5% beat
Beat by +3.5% but stock -12.1%
Price around earnings
Around this report
Overlapped an FOMC holdThis report landed on a US Federal Reserve rate-decision day. Rate decisions move the whole market, so the move may reflect the decision, not just earnings. A cut is not always good or a hike always bad. Crisis cuts fell, and hikes in a strong economy often rose.Down 7% into earningsIn the 3 trading days before this report, the stock moved more than usual. A pre-earnings run-up can mean expectations were already priced in, a drop can mean bad news was priced in early. Read the post-earnings reaction with that in mind.

Earnings trend · last 12 quarters

EPS$0.78YoY +30%
'23.10'26.7
Revenue—
'23.10'26.7

Earnings history and price reaction

Corning Incorporated across its last 12 earnings reports: EPS versus consensus, the move on the earnings day, and the cumulative move five trading days later.
Quarter endedReported (ET)vs market expectation (consensus)Earnings dayAfter 5 days
6/20262026-07-28+3.5%-12.1%+2.3%
3/20262026-04-28+1.2%-8.9%-4.8%
12/20252026-01-28+2.1%-5.0%+2.8%
9/20252025-10-28+0.8%-3.3%-2.1%
6/20252025-07-29+5.1%+11.9%+14.6%
3/20252025-04-29+5.4%+0.8%+3.0%

12 reports, quarters ending 9/2023 to 6/2026. The earnings-day move is the first trading day that reflects the report; the five-day figure is the cumulative move from that point.

Frequently asked questions

When is the next Corning Incorporated earnings date?

The next Corning Incorporated (GLW) earnings report is expected Tue, October 27 around 8:00 AM ET, before the open. It comes from an earnings calendar and may not be a company-confirmed date; it updates automatically if it changes.

What is the consensus EPS forecast for Corning Incorporated's next earnings?

Analysts expect EPS of about $0.87 for Corning Incorporated (GLW). Coming in above that counts as a beat, below it a miss — though a beat does not guarantee the stock rises.

Does Corning Incorporated (GLW) stock usually go up after earnings?

Over the last 12 earnings reports, the stock rose on 5 of them (42%). The average move on earnings day was ±5.7%.

Does Corning Incorporated react more to the earnings numbers or to guidance?

In 6 of the last 11 reports (55%), the stock moved the opposite way from whether it beat or missed the forecast. A high share means guidance and expectations drive the move more than the reported numbers.

Can Corning Incorporated stock fall even when earnings are good?

Yes. In 6 of the last 12 reports, Corning Incorporated fell on the earnings day despite growing EPS. Expectations already priced in, or guidance, can matter more than the reported numbers.

Does Corning Incorporated stock keep moving after the earnings day?

Over the last 12 reports, the move continued in the same direction for the following five trading days 42% of the time. This tendency is known as post-earnings announcement drift.