AMSC vs. ECO
AMSC (American Superconductor Corporation) and ECO (Okeanis Eco Tankers Corp) are both stocks. Both are in the Industrials sector — AMSC in Specialty Industrial Machinery, ECO in Marine Shipping. Over the past year, AMSC returned 42.76% vs 148.51% for ECO. At a 0.12 correlation, their price movements are largely independent.
Performance
AMSC vs. ECO - Performance Comparison
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Returns By Period
In the year-to-date period, AMSC achieves a 50.80% return, which is significantly lower than ECO's 65.79% return.
AMSC
- 1D
- 8.15%
- 1M
- -16.28%
- YTD
- 50.80%
- 6M
- 41.60%
- 1Y
- 42.76%
- 3Y*
- 86.23%
- 5Y*
- 24.53%
- 10Y*
- 17.89%
ECO
- 1D
- 2.84%
- 1M
- 0.83%
- YTD
- 65.79%
- 6M
- 65.40%
- 1Y
- 148.51%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
AMSC vs. ECO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | |
|---|---|---|---|---|
AMSC American Superconductor Corporation | 50.80% | 16.85% | 121.10% | 12.07% |
ECO Okeanis Eco Tankers Corp | 65.79% | 71.94% | -11.70% | -1.25% |
Correlation
The correlation between AMSC and ECO is 0.08, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.08 |
Correlation (All Time) Calculated using the full available price history since Dec 8, 2023 | 0.12 |
Fundamentals
AMSC:
$2.03B
ECO:
$2.00B
AMSC:
$3.05
ECO:
$5.83
AMSC:
14.24
ECO:
9.00
AMSC:
0.03
ECO:
0.85
AMSC:
6.37
ECO:
3.71
AMSC:
3.65
ECO:
2.76
AMSC:
$299.15M
ECO:
$481.57M
AMSC:
$91.38M
ECO:
$274.61M
AMSC:
$19.29M
ECO:
$284.05M
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Return for Risk
AMSC vs. ECO — Risk / Return Rank
AMSC
ECO
AMSC vs. ECO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for American Superconductor Corporation (AMSC) and Okeanis Eco Tankers Corp (ECO). 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.
| AMSC | ECO | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -3.15 | ||
| Sortino ratioReturn per unit of downside risk | -2.88 | ||
| Omega ratioGain probability vs. loss probability | 1.17 | 1.47 | -0.30 |
| Calmar ratioReturn relative to maximum drawdown | 0.67 | 8.23 | -7.56 |
| Martin ratioReturn relative to average drawdown | 1.11 | 23.50 | -22.38 |
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Drawdowns
AMSC vs. ECO - Drawdown Comparison
The maximum AMSC drawdown since its inception was -99.57%, which is greater than ECO's maximum drawdown of -46.15%. Use the drawdown chart below to compare losses from any high point for AMSC and ECO.
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Drawdown Indicators
| AMSC | ECO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -99.57% | -46.15% | -53.42% |
Max Drawdown (1Y)Largest decline over 1 year | -61.08% | -17.66% | -43.42% |
Max Drawdown (3Y)Largest decline over 3 years | -63.86% | — | — |
Max Drawdown (5Y)Largest decline over 5 years | -82.94% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -89.06% | — | — |
Current DrawdownCurrent decline from peak | -93.73% | -4.24% | -89.49% |
Average DrawdownAverage peak-to-trough decline | -75.77% | -15.08% | -60.69% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 36.76% | 6.23% | +30.53% |
Volatility
AMSC vs. ECO - Volatility Comparison
American Superconductor Corporation (AMSC) has a higher volatility of 22.71% compared to Okeanis Eco Tankers Corp (ECO) at 12.35%. This indicates that AMSC's price experiences larger fluctuations and is considered to be riskier than ECO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| AMSC | ECO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 22.71% | 12.35% | +10.36% |
Volatility (6M)Calculated over the trailing 6-month period | 55.16% | 30.55% | +24.61% |
Volatility (1Y)Calculated over the trailing 1-year period | 85.29% | 40.08% | +45.21% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 87.45% | 41.87% | +45.58% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 79.21% | 41.87% | +37.34% |
Dividends
AMSC vs. ECO - Dividend Comparison
AMSC has not paid dividends to shareholders, while ECO's dividend yield for the trailing twelve months is around 9.53%.
| Position | TTM | 2025 | 2024 |
|---|---|---|---|
AMSC American Superconductor Corporation | 0.00% | 0.00% | 0.00% |
ECO Okeanis Eco Tankers Corp | 9.53% | 6.26% | 15.57% |
Financials
AMSC vs. ECO - Financials Comparison
This section allows you to compare key financial metrics between American Superconductor Corporation and Okeanis Eco Tankers Corp. 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
AMSC vs. ECO - Profitability Comparison
AMSC - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, American Superconductor Corporation reported a gross profit of 23.60M and revenue of 86.41M. Therefore, the gross margin over that period was 27.3%.
ECO - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Okeanis Eco Tankers Corp reported a gross profit of 109.68M and revenue of 170.17M. Therefore, the gross margin over that period was 64.5%.
AMSC - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, American Superconductor Corporation reported an operating income of -522.00K and revenue of 86.41M, resulting in an operating margin of -0.6%.
ECO - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Okeanis Eco Tankers Corp reported an operating income of 98.06M and revenue of 170.17M, resulting in an operating margin of 57.6%.
AMSC - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, American Superconductor Corporation reported a net income of 4.53M and revenue of 86.41M, resulting in a net margin of 5.2%.
ECO - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Okeanis Eco Tankers Corp reported a net income of 88.32M and revenue of 170.17M, resulting in a net margin of 51.9%.
Frequently Asked Questions
AMSC and ECO have a correlation of 0.08, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
AMSC has higher volatility (22.71%) compared to ECO (12.35%). In terms of maximum drawdown, AMSC dropped -99.57% vs ECO's -46.15%.
ECO currently has the higher Sharpe Ratio (3.63 vs 0.48), 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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