GLW vs. CIEN
GLW (Corning Incorporated) and CIEN (Ciena Corporation) are both stocks. Both are in the Technology sector — GLW in Electronic Components, CIEN in Communication Equipment. Over the past 10 years, GLW returned 24.49%/yr vs 35.08%/yr for CIEN. Their 0.45 correlation means their historical movements had little consistent relationship.
Performance
GLW vs. CIEN - Performance Comparison
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Returns By Period
In the year-to-date period, GLW achieves a 79.57% return, which is significantly higher than CIEN's 74.81% return. Over the past 10 years, GLW has underperformed CIEN with an annualized return of 24.49%, while CIEN has yielded a comparatively higher 35.08% annualized return.
GLW
- 1D
- -2.00%
- 1M
- -19.56%
- 6M
- 43.34%
- YTD
- 79.57%
- 1Y
- 150.77%
- 3Y*
- 71.84%
- 5Y*
- 34.23%
- 10Y*
- 24.49%
- ALL TIME*
- 10.40%
CIEN
- 1D
- -0.56%
- 1M
- -5.76%
- 6M
- 61.27%
- YTD
- 74.81%
- 1Y
- 346.86%
- 3Y*
- 114.20%
- 5Y*
- 48.37%
- 10Y*
- 35.08%
- ALL TIME*
- 4.38%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $793.05M | $786.12M | $1.28B | |
| $2.46B | $2.09B | $2.84B |
GLW vs. CIEN - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
GLW Corning Incorporated | 79.57% | 87.76% | 60.64% | -1.23% | -11.56% | 5.92% | 27.57% | -1.02% | -3.28% | 34.63% |
CIEN Ciena Corporation | 74.81% | 175.76% | 88.42% | -11.71% | -33.77% | 45.64% | 23.80% | 25.89% | 62.02% | -14.26% |
Correlation
The correlation between GLW and CIEN is 0.69, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.69 |
Correlation (3Y) Balances recent behavior with more history. | 0.61 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.59 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.53 |
Correlation (All Time) Calculated using the full available price history since Feb 7, 1997 | 0.45 |
Over the past year, GLW and CIEN have become more correlated (0.69) than their long-term average of 0.45, meaning their price movements have been converging.
Fundamentals
GLW:
$134.98B
CIEN:
$57.87B
GLW:
$2.20
CIEN:
$3.00
GLW:
71.26
CIEN:
136.05
GLW:
7.98
CIEN:
10.71
GLW:
10.90
CIEN:
20.68
GLW:
$16.96B
CIEN:
$5.57B
GLW:
$6.16B
CIEN:
$2.40B
GLW:
$3.51B
CIEN:
$670.55M
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Return for Risk
GLW vs. CIEN — Risk / Return Rank
GLW
CIEN
GLW vs. CIEN - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Corning Incorporated (GLW) and Ciena Corporation (CIEN). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| GLW | CIEN | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -2.64 | ||
| Sortino ratioReturn per unit of downside risk | -1.22 | ||
| Omega ratioGain probability vs. loss probability | 1.35 | 1.53 | -0.18 |
| Calmar ratioReturn relative to maximum drawdown | 2.95 | 7.39 | -4.44 |
| Martin ratioReturn relative to average drawdown | 11.03 | 24.73 | -13.70 |
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Drawdowns
GLW vs. CIEN - Drawdown Comparison
The maximum GLW drawdown since its inception was -99.02%, roughly equal to the maximum CIEN drawdown of -99.51%. Use the drawdown chart below to compare losses from any high point for GLW and CIEN.
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Drawdown Indicators
| GLW | CIEN | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -99.02% | -99.51% | +0.49% |
Max Drawdown (1Y)Largest decline over 1 year | -51.48% | -47.31% | -4.17% |
Max Drawdown (3Y)Largest decline over 3 years | -51.48% | -47.31% | -4.17% |
Max Drawdown (5Y)Largest decline over 5 years | -51.48% | -49.54% | -1.94% |
Max Drawdown (10Y)Largest decline over 10 years | -51.48% | -49.54% | -1.94% |
Current DrawdownCurrent decline from peak | -38.71% | -60.93% | +22.22% |
Average DrawdownAverage peak-to-trough decline | -50.42% | -86.95% | +36.53% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 13.73% | 14.11% | -0.38% |
Volatility
GLW vs. CIEN - Volatility Comparison
Corning Incorporated (GLW) has a higher volatility of 26.20% compared to Ciena Corporation (CIEN) at 23.96%. This indicates that GLW's price experiences larger fluctuations and is considered to be riskier than CIEN based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| GLW | CIEN | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 26.20% | 23.96% | +2.24% |
Volatility (6M)Calculated over the trailing 6-month period | 62.01% | 56.28% | +5.73% |
Volatility (1Y)Calculated over the trailing 1-year period | 68.42% | 71.97% | -3.55% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 40.06% | 50.20% | -10.14% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 36.14% | 45.07% | -8.93% |
Dividends
GLW vs. CIEN - Dividend Comparison
GLW's dividend yield for the trailing twelve months is around 0.71%, while CIEN has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
CIEN Ciena Corporation | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
GLW Corning Incorporated | 0.71% | 1.28% | 2.36% | 3.68% | 3.38% | 2.58% | 2.44% | 2.75% | 2.38% | 1.94% | 2.22% | 2.63% |
Financials
GLW vs. CIEN - Financials Comparison
This section allows you to compare key financial metrics between Corning Incorporated and Ciena Corporation. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
GLW vs. CIEN - Profitability Comparison
GLW - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Corning Incorporated reported a gross profit of 1.63B and revenue of 4.51B. Therefore, the gross margin over that period was 36.1%.
CIEN - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Ciena Corporation reported a gross profit of 691.55M and revenue of 1.57B. Therefore, the gross margin over that period was 44.0%.
GLW - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Corning Incorporated reported an operating income of 698.00M and revenue of 4.51B, resulting in an operating margin of 15.5%.
CIEN - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Ciena Corporation reported an operating income of 237.87M and revenue of 1.57B, resulting in an operating margin of 15.1%.
GLW - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Corning Incorporated reported a net income of 559.00M and revenue of 4.51B, resulting in a net margin of 12.4%.
CIEN - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Ciena Corporation reported a net income of 218.22M and revenue of 1.57B, resulting in a net margin of 13.9%.
Frequently Asked Questions
GLW and CIEN have a correlation of 0.69, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
GLW has higher volatility (26.20%) compared to CIEN (23.96%). In terms of maximum drawdown, GLW dropped -99.02% vs CIEN's -99.51%.
CIEN currently has the higher Sharpe Ratio (4.86 vs 2.22), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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