AMSC vs. SBLK
AMSC (American Superconductor Corporation) and SBLK (Star Bulk Carriers Corp.) are both stocks. Both are in the Industrials sector — AMSC in Specialty Industrial Machinery, SBLK in Marine Shipping. Over the past 10 years, AMSC returned 14.23%/yr vs 29.24%/yr for SBLK. At a 0.21 correlation, their price movements are largely independent.
Performance
AMSC vs. SBLK - Performance Comparison
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Returns By Period
In the year-to-date period, AMSC achieves a 24.95% return, which is significantly lower than SBLK's 41.89% return. Over the past 10 years, AMSC has underperformed SBLK with an annualized return of 14.23%, while SBLK has yielded a comparatively higher 29.24% annualized return.
AMSC
- 1D
- -3.26%
- 1M
- -8.99%
- 6M
- 17.25%
- YTD
- 24.95%
- 1Y
- -8.20%
- 3Y*
- 75.08%
- 5Y*
- 17.38%
- 10Y*
- 14.23%
SBLK
- 1D
- 1.82%
- 1M
- -1.13%
- 6M
- 38.85%
- YTD
- 41.89%
- 1Y
- 48.44%
- 3Y*
- 23.17%
- 5Y*
- 17.99%
- 10Y*
- 29.24%
AMSC vs. SBLK - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
AMSC American Superconductor Corporation | 24.95% | 16.85% | 121.10% | 202.72% | -66.18% | -53.54% | 198.34% | -29.60% | 207.16% | -50.75% |
SBLK Star Bulk Carriers Corp. | 41.89% | 30.76% | -21.04% | 19.24% | 8.50% | 185.15% | -24.77% | 29.82% | -18.83% | 120.35% |
Correlation
The correlation between AMSC and SBLK is 0.13, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.13 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.14 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.18 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.18 |
Correlation (All Time) Calculated using the full available price history since Feb 27, 2006 | 0.21 |
Fundamentals
AMSC:
$1.74B
SBLK:
$2.94B
AMSC:
$2.95
SBLK:
$1.25
AMSC:
12.17
SBLK:
21.00
AMSC:
5.44
SBLK:
2.73
AMSC:
3.03
SBLK:
1.21
AMSC:
$299.15M
SBLK:
$1.09B
AMSC:
$91.38M
SBLK:
$377.07M
AMSC:
$19.29M
SBLK:
$377.39M
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Return for Risk
AMSC vs. SBLK — Risk / Return Rank
AMSC
SBLK
AMSC vs. SBLK - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for American Superconductor Corporation (AMSC) and Star Bulk Carriers Corp. (SBLK). 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 | SBLK | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.86 | ||
| Sortino ratioReturn per unit of downside risk | -1.87 | ||
| Omega ratioGain probability vs. loss probability | 1.06 | 1.28 | -0.22 |
| Calmar ratioReturn relative to maximum drawdown | -0.16 | 3.02 | -3.17 |
| Martin ratioReturn relative to average drawdown | -0.25 | 8.05 | -8.29 |
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Drawdowns
AMSC vs. SBLK - Drawdown Comparison
The maximum AMSC drawdown since its inception was -99.57%, roughly equal to the maximum SBLK drawdown of -99.76%. Use the drawdown chart below to compare losses from any high point for AMSC and SBLK.
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Drawdown Indicators
| AMSC | SBLK | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -99.57% | -99.76% | +0.19% |
Max Drawdown (1Y)Largest decline over 1 year | -61.08% | -17.49% | -43.59% |
Max Drawdown (3Y)Largest decline over 3 years | -63.86% | -48.44% | -15.42% |
Max Drawdown (5Y)Largest decline over 5 years | -82.94% | -48.44% | -34.50% |
Max Drawdown (10Y)Largest decline over 10 years | -89.06% | -73.77% | -15.29% |
Current DrawdownCurrent decline from peak | -94.81% | -93.60% | -1.21% |
Average DrawdownAverage peak-to-trough decline | -75.80% | -82.73% | +6.93% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 38.03% | 6.55% | +31.48% |
Volatility
AMSC vs. SBLK - Volatility Comparison
American Superconductor Corporation (AMSC) has a higher volatility of 22.33% compared to Star Bulk Carriers Corp. (SBLK) at 10.44%. This indicates that AMSC's price experiences larger fluctuations and is considered to be riskier than SBLK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| AMSC | SBLK | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 22.33% | 10.44% | +11.89% |
Volatility (6M)Calculated over the trailing 6-month period | 54.94% | 23.70% | +31.24% |
Volatility (1Y)Calculated over the trailing 1-year period | 85.50% | 30.33% | +55.17% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 87.45% | 42.70% | +44.75% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 79.28% | 52.07% | +27.21% |
Dividends
AMSC vs. SBLK - Dividend Comparison
AMSC has not paid dividends to shareholders, while SBLK's dividend yield for the trailing twelve months is around 3.91%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 |
|---|---|---|---|---|---|---|---|---|
AMSC American Superconductor Corporation | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
SBLK Star Bulk Carriers Corp. | 3.91% | 1.56% | 16.72% | 7.38% | 33.80% | 9.93% | 0.57% | 0.42% |
Financials
AMSC vs. SBLK - Financials Comparison
This section allows you to compare key financial metrics between American Superconductor Corporation and Star Bulk Carriers 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. SBLK - Profitability Comparison
AMSC - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jul 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%.
SBLK - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jul 2026, Star Bulk Carriers Corp. reported a gross profit of 92.95M and revenue of 281.15M. Therefore, the gross margin over that period was 33.1%.
AMSC - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jul 2026, American Superconductor Corporation reported an operating income of -522.00K and revenue of 86.41M, resulting in an operating margin of -0.6%.
SBLK - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jul 2026, Star Bulk Carriers Corp. reported an operating income of 73.02M and revenue of 281.15M, resulting in an operating margin of 26.0%.
AMSC - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jul 2026, American Superconductor Corporation reported a net income of 4.53M and revenue of 86.41M, resulting in a net margin of 5.2%.
SBLK - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jul 2026, Star Bulk Carriers Corp. reported a net income of 58.53M and revenue of 281.15M, resulting in a net margin of 20.8%.
Frequently Asked Questions
AMSC and SBLK have a correlation of 0.13, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
AMSC has higher volatility (22.33%) compared to SBLK (10.44%). In terms of maximum drawdown, AMSC dropped -99.57% vs SBLK's -99.76%.
SBLK currently has the higher Sharpe Ratio (1.75 vs -0.11), 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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