CMI vs. CIEN
CMI (Cummins Inc.) and CIEN (Ciena Corporation) are both stocks. CMI operates in Specialty Industrial Machinery (Industrials), while CIEN operates in Communication Equipment (Technology). Over the past 10 years, CMI returned 22.34%/yr vs 36.28%/yr for CIEN. At a 0.35 correlation, their price movements are largely independent.
Performance
CMI vs. CIEN - Performance Comparison
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Returns By Period
In the year-to-date period, CMI achieves a 32.64% return, which is significantly lower than CIEN's 99.54% return. Over the past 10 years, CMI has underperformed CIEN with an annualized return of 22.34%, while CIEN has yielded a comparatively higher 36.28% annualized return.
CMI
- 1D
- 3.30%
- 1M
- -0.70%
- YTD
- 32.64%
- 6M
- 33.36%
- 1Y
- 109.28%
- 3Y*
- 46.82%
- 5Y*
- 24.12%
- 10Y*
- 22.34%
CIEN
- 1D
- -4.41%
- 1M
- -14.86%
- YTD
- 99.54%
- 6M
- 119.17%
- 1Y
- 541.74%
- 3Y*
- 124.31%
- 5Y*
- 50.68%
- 10Y*
- 36.28%
CMI vs. CIEN - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
CMI Cummins Inc. | 32.64% | 49.36% | 48.92% | 1.72% | 14.09% | -1.68% | 30.50% | 38.04% | -22.06% | 32.74% |
CIEN Ciena Corporation | 99.54% | 175.76% | 88.42% | -11.71% | -33.77% | 45.64% | 23.80% | 25.89% | 62.02% | -14.26% |
Correlation
The correlation between CMI and CIEN is 0.46, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.46 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.42 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.44 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.39 |
Correlation (All Time) Calculated using the full available price history since Feb 10, 1997 | 0.35 |
The correlation between CMI and CIEN shifts across timeframes, from 0.35 (all time) to 0.46 (1 year), reflecting how their relationship changes across market environments.
Fundamentals
CMI:
$93.37B
CIEN:
$68.28B
CMI:
$19.27
CIEN:
$3.01
CMI:
34.90
CIEN:
154.94
CMI:
2.75
CIEN:
12.19
CMI:
7.56
CIEN:
23.61
CMI:
$33.89B
CIEN:
$5.57B
CMI:
$8.60B
CIEN:
$2.40B
CMI:
$4.87B
CIEN:
$670.55M
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Return for Risk
CMI vs. CIEN — Risk / Return Rank
CMI
CIEN
CMI vs. CIEN - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Cummins Inc. (CMI) 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.
| CMI | CIEN | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -4.90 | ||
| Sortino ratioReturn per unit of downside risk | -1.27 | ||
| Omega ratioGain probability vs. loss probability | 1.52 | 1.76 | -0.24 |
| Calmar ratioReturn relative to maximum drawdown | 7.22 | 21.37 | -14.15 |
| Martin ratioReturn relative to average drawdown | 26.31 | 100.03 | -73.72 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| CMI | CIEN | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 3.33 | 8.23 | -4.90 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.86 | 1.05 | -0.19 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.79 | 0.82 | -0.03 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.38 | 0.07 | +0.31 |
Drawdowns
CMI vs. CIEN - Drawdown Comparison
The maximum CMI drawdown since its inception was -75.66%, smaller than the maximum CIEN drawdown of -99.51%. Use the drawdown chart below to compare losses from any high point for CMI and CIEN.
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Drawdown Indicators
| CMI | CIEN | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -75.66% | -99.51% | +23.85% |
Max Drawdown (1Y)Largest decline over 1 year | -15.23% | -25.57% | +10.34% |
Max Drawdown (3Y)Largest decline over 3 years | -30.48% | -45.51% | +15.03% |
Max Drawdown (5Y)Largest decline over 5 years | -30.48% | -49.54% | +19.06% |
Max Drawdown (10Y)Largest decline over 10 years | -44.05% | -49.54% | +5.49% |
Current DrawdownCurrent decline from peak | -5.81% | -55.41% | +49.60% |
Average DrawdownAverage peak-to-trough decline | -22.23% | -87.11% | +64.88% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.17% | 5.45% | -1.28% |
Volatility
CMI vs. CIEN - Volatility Comparison
The current volatility for Cummins Inc. (CMI) is 12.18%, while Ciena Corporation (CIEN) has a volatility of 25.17%. This indicates that CMI experiences smaller price fluctuations and is considered to be less risky 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
| CMI | CIEN | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 12.18% | 25.17% | -12.99% |
Volatility (6M)Calculated over the trailing 6-month period | 27.86% | 55.99% | -28.13% |
Volatility (1Y)Calculated over the trailing 1-year period | 33.02% | 66.51% | -33.49% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 28.05% | 48.49% | -20.44% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 28.26% | 44.33% | -16.07% |
Dividends
CMI vs. CIEN - Dividend Comparison
CMI's dividend yield for the trailing twelve months is around 1.19%, 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% |
CMI Cummins Inc. | 1.19% | 1.50% | 2.01% | 2.71% | 2.49% | 2.57% | 2.33% | 2.74% | 3.32% | 2.38% | 2.93% | 3.99% |
Financials
CMI vs. CIEN - Financials Comparison
This section allows you to compare key financial metrics between Cummins Inc. 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
CMI vs. CIEN - Profitability Comparison
CMI - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Cummins Inc. reported a gross profit of 2.24B and revenue of 8.40B. Therefore, the gross margin over that period was 26.7%.
CIEN - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 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%.
CMI - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Cummins Inc. reported an operating income of 949.00M and revenue of 8.40B, resulting in an operating margin of 11.3%.
CIEN - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Ciena Corporation reported an operating income of 237.87M and revenue of 1.57B, resulting in an operating margin of 15.1%.
CMI - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Cummins Inc. reported a net income of 654.00M and revenue of 8.40B, resulting in a net margin of 7.8%.
CIEN - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 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
CMI and CIEN have a correlation of 0.46, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
CIEN has higher volatility (25.17%) compared to CMI (12.18%). In terms of maximum drawdown, CMI dropped -75.66% vs CIEN's -99.51%.
CIEN currently has the higher Sharpe Ratio (8.23 vs 3.33), 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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