FIX vs. AMSC

Last updated Jun 9, 2026

FIX (Comfort Systems USA, Inc.) and AMSC (American Superconductor Corporation) are both stocks. Both are in the Industrials sector — FIX in Engineering & Construction, AMSC in Specialty Industrial Machinery. Over the past 10 years, FIX returned 50.73%/yr vs 17.27%/yr for AMSC. At a 0.31 correlation, their price movements are largely independent.

Performance

FIX vs. AMSC - Performance Comparison

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

Returns By Period

In the year-to-date period, FIX achieves a 98.62% return, which is significantly higher than AMSC's 50.59% return. Over the past 10 years, FIX has outperformed AMSC with an annualized return of 50.73%, while AMSC has yielded a comparatively lower 17.27% annualized return.

FIX

• 1D: 0.44%
• 1M: -5.10%
• YTD: 98.62%
• 6M: 87.34%
• 1Y: 263.59%
• 3Y*: 127.92%
• 5Y*: 85.83%
• 10Y*: 50.73%

AMSC

• 1D: 2.36%
• 1M: -21.47%
• YTD: 50.59%
• 6M: 33.52%
• 1Y: 37.67%
• 3Y*: 91.72%
• 5Y*: 22.07%
• 10Y*: 17.27%

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

FIX vs. AMSC - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FIX Comfort Systems USA, Inc.	98.62%	120.86%	106.89%	79.62%	16.98%	88.98%	6.73%	15.07%	0.73%	32.13%
AMSC American Superconductor Corporation	50.59%	16.85%	121.10%	202.72%	-66.18%	-53.54%	198.34%	-29.60%	207.16%	-50.75%

Correlation

The correlation between FIX and AMSC is 0.54, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.54
Correlation (3Y) Calculated over the trailing 3-year period	0.50
Correlation (5Y) Calculated over the trailing 5-year period	0.45
Correlation (10Y) Calculated over the trailing 10-year period	0.40
Correlation (All Time) Calculated using the full available price history since Jun 30, 1997	0.31

Over the past year, FIX and AMSC have become more correlated (0.54) than their long-term average of 0.31, meaning their price movements have been converging.

Fundamentals

Market Cap FIX : $65.29B AMSC : $2.03B
EPS FIX : $34.64 AMSC : $3.05
PE Ratio FIX : 53.47 AMSC : 14.22
PEG Ratio FIX : 0.81 AMSC : 0.03
PS Ratio FIX : 6.45 AMSC : 6.36
PB Ratio FIX : 23.19 AMSC : 3.65
Total Revenue (TTM) FIX : $10.14B AMSC : $299.15M
Gross Profit (TTM) FIX : $2.55B AMSC : $91.38M
EBITDA (TTM) FIX : $1.70B AMSC : $19.29M

Return for Risk

FIX vs. AMSC — Risk / Return Rank

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

FIX

FIX Risk / Return Rank: 98
FIX Sharpe Ratio Rank: 99
FIX Sortino Ratio Rank: 98
FIX Omega Ratio Rank: 97
FIX Calmar Ratio Rank: 99
FIX Martin Ratio Rank: 99

AMSC

AMSC Risk / Return Rank: 58
AMSC Sharpe Ratio Rank: 57
AMSC Sortino Ratio Rank: 59
AMSC Omega Ratio Rank: 61
AMSC Calmar Ratio Rank: 57
AMSC Martin Ratio Rank: 53

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.

FIX vs. AMSC - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Comfort Systems USA, Inc. (FIX) and American Superconductor Corporation (AMSC). 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.

	FIX	AMSC	Difference
Sharpe ratio: Return per unit of total volatility	4.98	0.44	+4.53
Sortino ratio: Return per unit of downside risk	4.89	1.16	+3.72
Omega ratio: Gain probability vs. loss probability	1.65	1.16	+0.49
Calmar ratio: Return relative to maximum drawdown	19.28	0.62	+18.66
Martin ratio: Return relative to average drawdown	59.72	1.05	+58.68
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FIX vs. AMSC - Sharpe Ratio Comparison

The current FIX Sharpe Ratio is 4.98, which is higher than the AMSC Sharpe Ratio of 0.44. The chart below compares the historical Sharpe Ratios of FIX and AMSC, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	FIX	AMSC	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	4.98	0.44	+4.53
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	1.94	0.25	+1.69
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	1.20	0.22	+0.98
Sharpe Ratio (All Time) Calculated using the full available price history	0.40	-0.04	+0.44

Drawdowns

FIX vs. AMSC - Drawdown Comparison

The maximum FIX drawdown since its inception was -93.36%, smaller than the maximum AMSC drawdown of -99.57%. Use the drawdown chart below to compare losses from any high point for FIX and AMSC.

Drawdown Indicators

	FIX	AMSC	Difference
Max Drawdown Largest peak-to-trough decline	-93.36%	-99.57%	+6.21%
Max Drawdown (1Y) Largest decline over 1 year	-13.77%	-61.08%	+47.31%
Max Drawdown (3Y) Largest decline over 3 years	-46.05%	-63.86%	+17.81%
Max Drawdown (5Y) Largest decline over 5 years	-46.05%	-82.94%	+36.89%
Max Drawdown (10Y) Largest decline over 10 years	-49.68%	-89.06%	+39.38%
Current Drawdown Current decline from peak	-9.28%	-93.74%	+84.46%
Average Drawdown Average peak-to-trough decline	-38.08%	-75.76%	+37.68%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.46%	36.14%	-31.68%

Volatility

FIX vs. AMSC - Volatility Comparison

The current volatility for Comfort Systems USA, Inc. (FIX) is 12.60%, while American Superconductor Corporation (AMSC) has a volatility of 21.83%. This indicates that FIX experiences smaller price fluctuations and is considered to be less risky than AMSC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FIX	AMSC	Difference
Volatility (1M) Calculated over the trailing 1-month period	12.60%	21.83%	-9.23%
Volatility (6M) Calculated over the trailing 6-month period	37.27%	53.09%	-15.82%
Volatility (1Y) Calculated over the trailing 1-year period	53.46%	85.36%	-31.90%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	44.49%	87.23%	-42.74%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	42.35%	79.09%	-36.74%

Dividends

FIX vs. AMSC - Dividend Comparison

FIX's dividend yield for the trailing twelve months is around 0.14%, while AMSC has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AMSC American Superconductor 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%
FIX Comfort Systems USA, Inc.	0.14%	0.21%	0.28%	0.41%	0.49%	0.49%	0.81%	0.79%	0.76%	0.68%	0.83%	0.88%

Financials

FIX vs. AMSC - Profitability Comparison

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

FIX - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Comfort Systems USA, Inc. reported a gross profit of 754.41M and revenue of 2.87B. Therefore, the gross margin over that period was 26.3%.

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%.

FIX - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Comfort Systems USA, Inc. reported an operating income of 485.72M and revenue of 2.87B, resulting in an operating margin of 17.0%.

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%.

FIX - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Comfort Systems USA, Inc. reported a net income of 370.38M and revenue of 2.87B, resulting in a net margin of 12.9%.

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%.

Frequently Asked Questions

Can I hold both FIX and AMSC in my portfolio?

FIX and AMSC have a correlation of 0.54, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FIX or AMSC?

AMSC has higher volatility (21.83%) compared to FIX (12.60%). In terms of maximum drawdown, FIX dropped -93.36% vs AMSC's -99.57%.

Which has better risk-adjusted returns?

FIX currently has the higher Sharpe Ratio (4.98 vs 0.44), 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.