FIX vs. AAON

Last updated Jun 4, 2026

FIX (Comfort Systems USA, Inc.) and AAON (AAON, Inc.) are both stocks. Both are in the Industrials sector — FIX in Engineering & Construction, AAON in Building Products & Equipment. Over the past 10 years, FIX returned 50.88%/yr vs 23.96%/yr for AAON. At a 0.40 correlation, their price movements are largely independent.

Performance

FIX vs. AAON - Performance Comparison

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

Returns By Period

The year-to-date returns for both stocks are quite close, with FIX having a 98.41% return and AAON slightly lower at 94.67%. Over the past 10 years, FIX has outperformed AAON with an annualized return of 50.88%, while AAON has yielded a comparatively lower 23.96% annualized return.

FIX

• 1D: -1.76%
• 1M: -2.18%
• YTD: 98.41%
• 6M: 95.06%
• 1Y: 273.24%
• 3Y*: 129.39%
• 5Y*: 85.41%
• 10Y*: 50.88%

AAON

• 1D: 3.31%
• 1M: 61.32%
• YTD: 94.67%
• 6M: 67.48%
• 1Y: 55.85%
• 3Y*: 35.00%
• 5Y*: 28.76%
• 10Y*: 23.96%

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

FIX vs. AAON - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FIX Comfort Systems USA, Inc.	98.41%	120.86%	106.89%	79.62%	16.98%	88.98%	6.73%	15.07%	0.73%	32.13%
AAON AAON, Inc.	94.67%	-34.91%	59.88%	47.86%	-4.55%	19.84%	35.71%	41.88%	-3.59%	11.84%

Correlation

The correlation between FIX and AAON is 0.45, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.45
Correlation (3Y) Calculated over the trailing 3-year period	0.54
Correlation (5Y) Calculated over the trailing 5-year period	0.55
Correlation (10Y) Calculated over the trailing 10-year period	0.52
Correlation (All Time) Calculated using the full available price history since Jun 30, 1997	0.40

The correlation between FIX and AAON shifts across timeframes, from 0.40 (all time) to 0.55 (5 years), reflecting how their relationship changes across market environments.

Fundamentals

Market Cap FIX : $65.22B AAON : $12.33B
EPS FIX : $34.64 AAON : $1.42
PE Ratio FIX : 53.41 AAON : 104.24
PEG Ratio FIX : 0.81 AAON : 4.17
PS Ratio FIX : 6.45 AAON : 7.61
PB Ratio FIX : 23.17 AAON : 13.20
Total Revenue (TTM) FIX : $10.14B AAON : $1.62B
Gross Profit (TTM) FIX : $2.55B AAON : $424.33M
EBITDA (TTM) FIX : $1.70B AAON : $228.54M

Return for Risk

FIX vs. AAON — 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

AAON

AAON Risk / Return Rank: 69
AAON Sharpe Ratio Rank: 69
AAON Sortino Ratio Rank: 70
AAON Omega Ratio Rank: 67
AAON Calmar Ratio Rank: 72
AAON Martin Ratio Rank: 69

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. AAON - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Comfort Systems USA, Inc. (FIX) and AAON, Inc. (AAON). 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	AAON	Difference
Sharpe ratio: Return per unit of total volatility	5.18	0.89	+4.29
Sortino ratio: Return per unit of downside risk	5.01	1.71	+3.31
Omega ratio: Gain probability vs. loss probability	1.67	1.21	+0.46
Calmar ratio: Return relative to maximum drawdown	19.99	1.83	+18.16
Martin ratio: Return relative to average drawdown	62.95	3.56	+59.39
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. AAON - Sharpe Ratio Comparison

The current FIX Sharpe Ratio is 5.18, which is higher than the AAON Sharpe Ratio of 0.89. The chart below compares the historical Sharpe Ratios of FIX and AAON, 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	AAON	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	5.18	0.89	+4.29
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	1.93	0.64	+1.30
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	1.21	0.60	+0.61
Sharpe Ratio (All Time) Calculated using the full available price history	0.40	0.53	-0.13

Drawdowns

FIX vs. AAON - Drawdown Comparison

The maximum FIX drawdown since its inception was -93.36%, which is greater than AAON's maximum drawdown of -76.03%. Use the drawdown chart below to compare losses from any high point for FIX and AAON.

Drawdown Indicators

	FIX	AAON	Difference
Max Drawdown Largest peak-to-trough decline	-93.36%	-76.03%	-17.33%
Max Drawdown (1Y) Largest decline over 1 year	-13.77%	-30.75%	+16.98%
Max Drawdown (3Y) Largest decline over 3 years	-46.05%	-48.86%	+2.81%
Max Drawdown (5Y) Largest decline over 5 years	-46.05%	-48.86%	+2.81%
Max Drawdown (10Y) Largest decline over 10 years	-49.68%	-48.86%	-0.82%
Current Drawdown Current decline from peak	-9.38%	0.00%	-9.38%
Average Drawdown Average peak-to-trough decline	-38.09%	-19.26%	-18.83%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.36%	15.75%	-11.39%

Volatility

FIX vs. AAON - Volatility Comparison

The current volatility for Comfort Systems USA, Inc. (FIX) is 12.90%, while AAON, Inc. (AAON) has a volatility of 30.05%. This indicates that FIX experiences smaller price fluctuations and is considered to be less risky than AAON based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FIX	AAON	Difference
Volatility (1M) Calculated over the trailing 1-month period	12.90%	30.05%	-17.15%
Volatility (6M) Calculated over the trailing 6-month period	37.41%	44.49%	-7.08%
Volatility (1Y) Calculated over the trailing 1-year period	53.25%	62.94%	-9.69%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	44.43%	45.44%	-1.01%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	42.33%	40.28%	+2.05%

Dividends

FIX vs. AAON - Dividend Comparison

FIX's dividend yield for the trailing twelve months is around 0.14%, less than AAON's 0.27% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AAON AAON, Inc.	0.27%	0.52%	0.27%	0.43%	0.57%	0.48%	0.57%	0.65%	0.91%	0.71%	0.73%	0.95%
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. AAON - Profitability Comparison

The chart below illustrates the profitability comparison between Comfort Systems USA, Inc. and AAON, Inc. 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%.

AAON - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, AAON, Inc. reported a gross profit of 124.97M and revenue of 496.94M. Therefore, the gross margin over that period was 25.2%.

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%.

AAON - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, AAON, Inc. reported an operating income of 57.06M and revenue of 496.94M, resulting in an operating margin of 11.5%.

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%.

AAON - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, AAON, Inc. reported a net income of 39.82M and revenue of 496.94M, resulting in a net margin of 8.0%.

Frequently Asked Questions

Can I hold both FIX and AAON in my portfolio?

FIX and AAON have a correlation of 0.45, 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 AAON?

AAON has higher volatility (30.05%) compared to FIX (12.90%). In terms of maximum drawdown, FIX dropped -93.36% vs AAON's -76.03%.

Which has better risk-adjusted returns?

FIX currently has the higher Sharpe Ratio (5.18 vs 0.89), 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.