AMSC vs. ALAB

Last updated Jun 20, 2026

AMSC (American Superconductor Corporation) and ALAB (Astera Labs, Inc.) are both stocks. AMSC operates in Specialty Industrial Machinery (Industrials), while ALAB operates in Semiconductors (Technology). Over the past year, AMSC returned 42.76% vs 348.10% for ALAB. At a 0.40 correlation, their price movements are largely independent.

Performance

AMSC vs. ALAB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Superconductor Corporation (AMSC) and Astera Labs, Inc. (ALAB). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, AMSC achieves a 50.80% return, which is significantly lower than ALAB's 150.70% 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%

ALAB

• 1D: 11.31%
• 1M: 40.03%
• YTD: 150.70%
• 6M: 153.69%
• 1Y: 348.10%
• 3Y*: —
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

AMSC vs. ALAB - Yearly Performance Comparison

	2026 (YTD)	2025	2024
AMSC American Superconductor Corporation	50.80%	16.85%	87.02%
ALAB Astera Labs, Inc.	150.70%	25.60%	152.00%

Correlation

The correlation between AMSC and ALAB is 0.39, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.39
Correlation (All Time) Calculated using the full available price history since Mar 20, 2024	0.40

Fundamentals

Market Cap AMSC : $2.03B ALAB : $75.56B
EPS AMSC : $3.05 ALAB : $1.48
PE Ratio AMSC : 14.24 ALAB : 280.93
PS Ratio AMSC : 6.37 ALAB : 75.08
PB Ratio AMSC : 3.65 ALAB : 50.57
Total Revenue (TTM) AMSC : $299.15M ALAB : $1.00B
Gross Profit (TTM) AMSC : $91.38M ALAB : $760.99M
EBITDA (TTM) AMSC : $19.29M ALAB : $253.12M

Return for Risk

AMSC vs. ALAB — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

AMSC

AMSC Risk / Return Rank: 59
AMSC Sharpe Ratio Rank: 59
AMSC Sortino Ratio Rank: 60
AMSC Omega Ratio Rank: 62
AMSC Calmar Ratio Rank: 57
AMSC Martin Ratio Rank: 55

ALAB

ALAB Risk / Return Rank: 92
ALAB Sharpe Ratio Rank: 96
ALAB Sortino Ratio Rank: 91
ALAB Omega Ratio Rank: 90
ALAB Calmar Ratio Rank: 93
ALAB Martin Ratio Rank: 89

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

AMSC vs. ALAB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Superconductor Corporation (AMSC) and Astera Labs, Inc. (ALAB). 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	ALAB	Difference
Sharpe ratio: Return per unit of total volatility	0.48	3.33	-2.85
Sortino ratio: Return per unit of downside risk	1.21	3.19	-1.98
Omega ratio: Gain probability vs. loss probability	1.17	1.41	-0.24
Calmar ratio: Return relative to maximum drawdown	0.67	5.34	-4.67
Martin ratio: Return relative to average drawdown	1.11	10.53	-9.42

AMSC vs. ALAB - Sharpe Ratio Comparison

The current AMSC Sharpe Ratio is 0.48, which is lower than the ALAB Sharpe Ratio of 3.33. The chart below compares the historical Sharpe Ratios of AMSC and ALAB, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

AMSC vs. ALAB - Drawdown Comparison

The maximum AMSC drawdown since its inception was -99.57%, which is greater than ALAB's maximum drawdown of -63.69%. Use the drawdown chart below to compare losses from any high point for AMSC and ALAB.

Drawdown Indicators

	AMSC	ALAB	Difference
Max Drawdown Largest peak-to-trough decline	-99.57%	-63.69%	-35.88%
Max Drawdown (1Y) Largest decline over 1 year	-61.08%	-60.19%	-0.89%
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 Drawdown Current decline from peak	-93.73%	0.00%	-93.73%
Average Drawdown Average peak-to-trough decline	-75.77%	-29.29%	-46.48%
Ulcer Index Depth and duration of drawdowns from previous peaks	36.76%	30.50%	+6.26%

Volatility

AMSC vs. ALAB - Volatility Comparison

The current volatility for American Superconductor Corporation (AMSC) is 22.71%, while Astera Labs, Inc. (ALAB) has a volatility of 31.61%. This indicates that AMSC experiences smaller price fluctuations and is considered to be less risky than ALAB based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AMSC	ALAB	Difference
Volatility (1M) Calculated over the trailing 1-month period	22.71%	31.61%	-8.90%
Volatility (6M) Calculated over the trailing 6-month period	55.16%	69.77%	-14.61%
Volatility (1Y) Calculated over the trailing 1-year period	85.29%	96.74%	-11.45%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	87.45%	93.67%	-6.22%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	79.21%	93.67%	-14.46%

Dividends

AMSC vs. ALAB - Dividend Comparison

Neither AMSC nor ALAB has paid dividends to shareholders.

Tickers have no history of dividend payments

Financials

AMSC vs. ALAB - Profitability Comparison

The chart below illustrates the profitability comparison between American Superconductor Corporation and Astera Labs, Inc. over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

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%.

ALAB - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Astera Labs, Inc. reported a gross profit of 235.14M and revenue of 308.36M. Therefore, the gross margin over that period was 76.3%.

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%.

ALAB - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Astera Labs, Inc. reported an operating income of 61.83M and revenue of 308.36M, resulting in an operating margin of 20.1%.

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%.

ALAB - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Astera Labs, Inc. reported a net income of 80.31M and revenue of 308.36M, resulting in a net margin of 26.0%.

Frequently Asked Questions

Can I hold both AMSC and ALAB in my portfolio?

AMSC and ALAB have a correlation of 0.39, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, AMSC or ALAB?

ALAB has higher volatility (31.61%) compared to AMSC (22.71%). In terms of maximum drawdown, AMSC dropped -99.57% vs ALAB's -63.69%.

Which has better risk-adjusted returns?

ALAB currently has the higher Sharpe Ratio (3.33 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.