FIX vs. AAON

Last updated Aug 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 51.83%/yr vs 18.67%/yr for AAON. Their 0.40 correlation means their historical movements had little consistent relationship.

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

In the year-to-date period, FIX achieves a 89.93% return, which is significantly higher than AAON's 21.63% return. Over the past 10 years, FIX has outperformed AAON with an annualized return of 51.83%, while AAON has yielded a comparatively lower 18.67% annualized return.

FIX

• 1D: 2.39%
• 1M: 1.70%
• 6M: 50.70%
• YTD: 89.93%
• 1Y: 155.28%
• 3Y*: 116.02%
• 5Y*: 89.46%
• 10Y*: 51.83%
• ALL TIME*: 18.46%

AAON

• 1D: 3.93%
• 1M: -13.99%
• 6M: 2.95%
• YTD: 21.63%
• 1Y: 13.84%
• 3Y*: 12.79%
• 5Y*: 18.03%
• 10Y*: 18.67%
• ALL TIME*: 24.45%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
AAON AAON, Inc.	$109.53M	$111.29M	$147.62M
FIX Comfort Systems USA, Inc.	$981.94M	$906.40M	$912.69M

FIX vs. AAON - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
FIX Comfort Systems USA, Inc.	89.93%	120.86%	106.89%	79.62%	16.98%	88.98%	6.73%	15.07%	0.73%	32.13%
AAON AAON, Inc.	21.63%	-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 0.51, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.51
Correlation (3Y) Balances recent behavior with more history.	0.55
Correlation (5Y) Shows whether the relationship held over a longer period.	0.55
Correlation (10Y) Provides a long-term view across more market conditions.	0.53
Correlation (All Time) Calculated using the full available price history since Jun 27, 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 : $62.33B AAON : $7.58B
EPS FIX : $40.64 AAON : $1.42
PE Ratio FIX : 43.58 AAON : 65.10
PEG Ratio FIX : 0.66 AAON : 2.60
PS Ratio FIX : 5.57 AAON : 4.76
PB Ratio FIX : 19.41 AAON : 8.24
Total Revenue (TTM) FIX : $11.23B AAON : $1.62B
Gross Profit (TTM) FIX : $2.88B AAON : $424.33M
EBITDA (TTM) FIX : $1.96B AAON : $228.54M

Return for Risk

FIX vs. AAON — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

FIX

FIX Risk / Return Rank: 95
FIX Sharpe Ratio Rank: 97
FIX Sortino Ratio Rank: 93
FIX Omega Ratio Rank: 92
FIX Calmar Ratio Rank: 96
FIX Martin Ratio Rank: 98

AAON

AAON Risk / Return Rank: 53
AAON Sharpe Ratio Rank: 53
AAON Sortino Ratio Rank: 54
AAON Omega Ratio Rank: 52
AAON Calmar Ratio Rank: 53
AAON Martin Ratio Rank: 55

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

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.

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.

	FIX	AAON	Difference
Sharpe ratio: Return per unit of total volatility	2.83	0.22	+2.61
Sortino ratio: Return per unit of downside risk	3.11	0.83	+2.28
Omega ratio: Gain probability vs. loss probability	1.40	1.10	+0.31
Calmar ratio: Return relative to maximum drawdown	5.91	0.33	+5.58
Martin ratio: Return relative to average drawdown	22.53	0.88	+21.65

FIX vs. AAON - Sharpe Ratio Comparison

The current FIX Sharpe Ratio is 2.83, which is higher than the AAON Sharpe Ratio of 0.22. 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.

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	-26.45%	-42.71%	+16.26%
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	-14.30%	-37.52%	+23.22%
Average Drawdown Average peak-to-trough decline	-37.94%	-19.27%	-18.67%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.92%	15.72%	-8.80%

Volatility

FIX vs. AAON - Volatility Comparison

Comfort Systems USA, Inc. (FIX) has a higher volatility of 19.82% compared to AAON, Inc. (AAON) at 17.13%. This indicates that FIX's price experiences larger fluctuations and is considered to be riskier 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	19.82%	17.13%	+2.69%
Volatility (6M) Calculated over the trailing 6-month period	42.93%	48.21%	-5.28%
Volatility (1Y) Calculated over the trailing 1-year period	55.34%	63.90%	-8.56%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	45.95%	46.68%	-0.73%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	43.10%	40.99%	+2.11%

Dividends

FIX vs. AAON - Dividend Comparison

FIX's dividend yield for the trailing twelve months is around 0.15%, less than AAON's 0.43% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AAON AAON, Inc.	0.43%	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.	0.15%	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 Aug 2026, Comfort Systems USA, Inc. reported a gross profit of 844.23M and revenue of 3.27B. Therefore, the gross margin over that period was 25.9%.

AAON - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 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 Aug 2026, Comfort Systems USA, Inc. reported an operating income of 557.97M and revenue of 3.27B, resulting in an operating margin of 17.1%.

AAON - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 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 Aug 2026, Comfort Systems USA, Inc. reported a net income of 441.60M and revenue of 3.27B, resulting in a net margin of 13.5%.

AAON - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Aug 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 0.51, 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?

FIX has higher volatility (19.82%) compared to AAON (17.13%). 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 (2.83 vs 0.22), 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.