When does Corning Incorporated (GLW) report earnings? On Oct 27, 2026, before the open
Of its last 12 earnings announcements: 12 during market hours. Each one comes from the 8-K with item 2.02 that Corning filed with the SEC, paired with the 10-Q or 10-K for that same quarter: 69 quarters since Jul 27, 2009, and every row links to its filing.
Next announced date: Oct 27, 2026, before the open. It comes from the company through the public Nasdaq calendar, not from the SEC: it is a scheduled date and companies do move it. Everything else on this page already happened, with its filing attached.
The last 20 quarters, one by one
"Lead": trading sessions between the announcement and the full quarterly report to the SEC (10-Q, or 10-K at fiscal year end). For Corning, a median of 3 sessions over the last 12 quarters.
| Announcement | Day | Time (NY) | Session | Quarter ended | SEC report | Lead | Filing |
|---|---|---|---|---|---|---|---|
| Jul 28, 2026 | Tuesday | 11:03 | during market hours | Jun 30, 2026 | 10-Q · Jul 29, 2026 | 1 session | 8-K |
| Apr 28, 2026 | Tuesday | 11:02 | during market hours | Mar 31, 2026 | 10-Q · May 1, 2026 | 3 sessions | 8-K |
| Jan 28, 2026 | Wednesday | 12:05 | during market hours | Dec 31, 2025 | 10-K · Feb 12, 2026 | 11 sessions | 8-K |
| Oct 28, 2025 | Tuesday | 11:05 | during market hours | Sep 30, 2025 | 10-Q · Oct 31, 2025 | 3 sessions | 8-K |
| Jul 29, 2025 | Tuesday | 11:02 | during market hours | Jun 30, 2025 | 10-Q · Aug 1, 2025 | 3 sessions | 8-K |
| Apr 29, 2025 | Tuesday | 11:11 | during market hours | Mar 31, 2025 | 10-Q · May 2, 2025 | 3 sessions | 8-K |
| Jan 29, 2025 | Wednesday | 12:12 | during market hours | Dec 31, 2024 | 10-K · Feb 13, 2025 | 11 sessions | 8-K |
| Oct 29, 2024 | Tuesday | 11:13 | during market hours | Sep 30, 2024 | 10-Q · Nov 1, 2024 | 3 sessions | 8-K |
| Jul 30, 2024 | Tuesday | 11:12 | during market hours | Jun 30, 2024 | 10-Q · Aug 2, 2024 | 3 sessions | 8-K |
| Apr 30, 2024 | Tuesday | 11:15 | during market hours | Mar 31, 2024 | 10-Q · May 2, 2024 | 2 sessions | 8-K |
| Jan 30, 2024 | Tuesday | 12:13 | during market hours | Dec 31, 2023 | 10-K · Feb 12, 2024 | 9 sessions | 8-K |
| Oct 24, 2023 | Tuesday | 11:11 | during market hours | Sep 30, 2023 | 10-Q · Oct 30, 2023 | 4 sessions | 8-K |
| Jul 25, 2023 | Tuesday | 11:16 | during market hours | Jun 30, 2023 | 10-Q · Jul 27, 2023 | 2 sessions | 8-K |
| Apr 25, 2023 | Tuesday | 11:16 | during market hours | Mar 31, 2023 | 10-Q · Apr 28, 2023 | 3 sessions | 8-K |
| Jan 31, 2023 | Tuesday | 12:13 | during market hours | Dec 31, 2022 | 10-K · Feb 13, 2023 | 9 sessions | 8-K |
| Oct 25, 2022 | Tuesday | 11:15 | during market hours | Sep 30, 2022 | 10-Q · Oct 27, 2022 | 2 sessions | 8-K |
| Jul 26, 2022 | Tuesday | 11:13 | during market hours | Jun 30, 2022 | 10-Q · Jul 29, 2022 | 3 sessions | 8-K |
| Apr 26, 2022 | Tuesday | 11:19 | during market hours | Mar 31, 2022 | 10-Q · Apr 29, 2022 | 3 sessions | 8-K |
| Jan 26, 2022 | Wednesday | 12:33 | during market hours | Dec 31, 2021 | 10-K · Feb 14, 2022 | 13 sessions | 8-K |
| Oct 26, 2021 | Tuesday | 11:17 | during market hours | Sep 30, 2021 | 10-Q · Oct 29, 2021 | 3 sessions | 8-K |
The table shows the 20 most recent quarters. All 69 are in the CSV, with the same columns and one row per quarter.
Download all 69 GLW quarters as CSV → Free, no account.
How Corning shares moved on their latest earnings
Over the 8 announcements with prices in this table, GLW rose 3 times and fell 5 times; the median move, ignoring sign, was 4.8%, against 0.3% for SPY over the same windows. The largest, −12.1%, came with the results of Jul 28, 2026. Reported EPS beat the consensus estimate in 5 of the 5 quarters with an estimate.
| Announcement | Session | Window, close to close | GLW | SPY | EPS actual / expected |
|---|---|---|---|---|---|
| Jul 28, 2026 | during market hours | Jul 27, 2026 → Jul 28, 2026 | −12.1% | +0.2% | 0.78 / 0.75 (+3.5%) |
| Apr 28, 2026 | during market hours | Apr 27, 2026 → Apr 28, 2026 | −8.9% | −0.5% | 0.7 / 0.69 (+1.2%) |
| Jan 28, 2026 | during market hours | Jan 27, 2026 → Jan 28, 2026 | −5% | 0% | 0.72 / 0.71 (+2.1%) |
| Oct 28, 2025 | during market hours | Oct 27, 2025 → Oct 28, 2025 | −3.3% | +0.3% | 0.67 / 0.66 (+0.8%) |
| Jul 29, 2025 | during market hours | Jul 28, 2025 → Jul 29, 2025 | +11.9% | −0.3% | 0.6 / 0.57 (+5.1%) |
| Apr 29, 2025 | during market hours | Apr 28, 2025 → Apr 29, 2025 | +0.8% | +0.6% | |
| Jan 29, 2025 | during market hours | Jan 28, 2025 → Jan 29, 2025 | −2.8% | −0.4% | |
| Oct 29, 2024 | during market hours | Oct 28, 2024 → Oct 29, 2024 | +4.7% | +0.2% |
GLW window: when it reported before the open or during market hours, from the previous close to that day's. Split-adjusted closes and EPS with its estimate, from Yahoo Finance. It already happened: it does not anticipate the next announcement.
Where each number comes from
From the 8-K with item 2.02 ("Results of Operations and Financial Condition") that Corning filed on EDGAR, the SEC's public database; only those with their 10-Q or 10-K behind them count, so other 8-Ks with the same item (production figures, monthly sales) stay out. The time is converted to New York time using this specific company's stamp convention (its EDGAR stamp arrives in UTC), and it is not assumed: it is derived from the hours in which EDGAR accepts filings. In 12 of this company's 69 quarters the date comes from the EDGAR acceptance day rather than the 8-K cover box, and those are flagged with an asterisk in the table.
What this data does not know
- The exact time of the press release: the 8-K reaches EDGAR minutes or hours later, so Corning's median 11:12 is an upper bound. The session says which one the news landed in, not what minute it was said.
- Nothing before Jul 27, 2009: it is Corning's oldest quarter with announcement and report paired in the file.
- What will happen. The page's only future date, Oct 27, 2026, was announced by Corning on the Nasdaq calendar and can be moved. Corning reporting during market hours 20 quarters in a row does not say the next one will be the same.
- Corning's identity is its SEC CIK (0000024741), not its symbol: symbols get recycled and renamed.
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More on Corning
Corning is in the Technology sector. On the model's multifactor score of Oct 21, 2026 it ranks 83 of 464, and 24 of the 83 companies in its sector that score. It is a quantitative model ranking, not a recommendation.
All ~500 S&P 500 companies, sorted by when they report →
Guide: 10-K, 10-Q and 8-K · all guides
What is behind these dates
The concepts on this page, explained from scratch in the Academy. Free, no account.
- Guessing next quarter's earnings gives no edgeWhy knowing a quarter's earnings in advance is not enough to make money: what moves the price is the gap against what was expected.
- Supply, demand and price: why it rises and falls constantlyWhat happens to the price on announcement day, and why excellent results can leave the stock falling.
- The three financial statements of a companyWhat is inside the 10-Q and the 10-K whose lag behind the announcement this page measures.
- Point-in-time data and look-ahead biasWhy the date a figure became public matters as much as the figure, which is exactly the distinction behind the two date columns above.
Source: EDGAR, the SEC's public database (forms 8-K, 10-Q and 10-K). Data through Jul 28, 2026. This is a list of public facts and of calculations made on them, not financial advice or a recommendation to buy or sell.